LONDON’S GLOBAL UNIVERSITY UNIVERSITY COLLEGE LONDON WORKING WITH SUBSTANCES APPROVED CODE of PRACTICE Introduction This document, a UCL-approved Code of Practice (UCL-ACOP), provides a mechanism by which departments can fulfil their duty to assess and manage the risk to health and safety of their work with substances. This Code of Practice forms part of UCL’s general arrangements for health and safety and is also part of a department’s own arrangements for health and safety under its Statement of Safety Policy (SSP). It will assist the department to comply with the requirements of UCL in accordance with the Control of Substances Hazardous to Health (COSHH) regulations and the Dangerous Substances and Explosives Atmospheres Regulations (DSEAR). If departments follow this advice, they will normally be doing enough to comply with the UCL-ACOP. Departments may use alternative methods to those set out in this Code but if so will have to show that they complied with the UCL-ACOP in some other way. This ACOP and Appendices have been drawn up by Safety Services making use of guidance issued by the Health and Safety Executive and other “best practice” where appropriate. They are approved for use in UCL and its constituent Institutes and Departments by the Health and Safety Management Team (HSMT) and are published after consultation with all concerned. The ACOP applies to all workers (including students) involved in work with substances as well as to maintenance staff, service engineers, visitors, cleaners etc. who may, from time to time, have to enter areas where work is carried out. Aim of this document The aim of UCL's safety policy is to encourage and promote the safe management of departmental work activities by its constituent departments whose staff have the expertise and experience to understand and control those risks. The extent and variety of work with substances at UCL is enormous. The setting of performance standards for safe working is complicated by these factors: • UCL has over 100 separate departments, Institutes, etc, all of which handle materials which potentially fall within the category of "substances hazardous to health" or “dangerous substance”. • "substances" range in degree of hazard from the relatively trivial to fatal. • • the circumstances and procedures in which substances are used varies widely from department to department and within departments. not all hazards affect health since the properties of some substances give rise to other risks principally those of fire and explosion. Accordingly, this document sets out a strategy to guide the people responsible for supervising work with substances, in the identification and control of risk. It aims to provide guidance in procedures to assist departments to put suitable control measures in place while avoiding the imposition of unnecessarily burdensome procedures for the control of risk which is clearly trivial. The strategy set out below is to guide departments to prioritise their risk control measures in scale with the risk. It takes managers through a process for classification of hazard in proportion to severity and guides them through the "hierarchy of risk control” in accordance with the legislative requirement set out in HSE guidance to the COSHH regulations 2002. UCL Safety Service UCL ACOP: Working with Substances Legislation addressed by this UCL-ACOP The Control of Substances Hazardous to Health Regulations 2002 (COSHH). Although animal allergens are substances hazardous to health UCL has a specific ACOP in place to manage the risks associated with them. All other respiratory sensitisers must be addressed as part of this UCL-ACOP Working with Substances. The Dangerous Substances and Explosives Atmospheres Regulations 2002 (DSEAR). DSEAR covers safety aspects such as fires and explosions arising from “dangerous substances”. NB. The DSEAR removes the need for licensing the storage of petrol and other petroleum spirits in the workplace. Legislation mainly concerned with petroleum spirit has been amended, revoked or repealed. Legislation not addressed by this UCL-ACOP The Control of Lead at Work Regulations 2002. The Control of Asbestos at Work Regulations 2002. The identification and removal (where appropriate) of asbestos on UCL premises is managed by the Construction and Fire Safety Manager, Estates and Facilities. The Ionising Radiation Regulations 1999. UCL has an ACOP in the form of Local Rules for the use of ionising radiation. Contact your Departmental Radiation Protection Supervisor (DRPS) if you intend working with radiation. The Genetically Modified Organisms (Contained Use) Regulations 2000. UCL has an ACOP for working with genetically modified organisms. Contact your Genetic Modification Safety Officer (GMSO) if you intend working with genetically modified organisms. Abbreviations ACDP Advisory Committee on Dangerous Pathogens COSHH control of substances hazardous to health DSEAR dangerous substances and explosive atmospheres regulations EH40 guidance published by the HSE giving workplace exposure limits for substances HSE Health and Safety Executive PPE personal protective equipment SSP statement of safety policy WEL workplace exposure limit Page 3 of 25 UCL Safety Services UCL ACOP: Working with Substances 1 Definitions applicable to this UCL-ACOP UCL – ACOP Substance 1.1 Any natural or artificial substance whether in solid or liquid form or in the form of a gas or vapour (including micro-organisms). This includes substances which have been supplied or which have been produced by a work activity e.g. fumes, vapour, aerosols, products and waste materials. Guidance 1.1 This definition includes “dangerous substances”, “substances hazardous to health”, “biological agents” (except genetically modified organisms which have a separate UCL-ACOP), “carcinogens”, “respiratory sensitisers” (except animal allergens which have a separate UCL-ACOP) and “dust”. UCL – ACOP Dangerous Substance 1.2 Substances (including preparations) which are classified explosive, oxidising, extremely flammable, highly flammable, and flammable. Dusts formed from solid particles or fibrous materials which when mixed with air can form and explosive atmosphere. Guidance 1.2 A substance which because of its properties could cause harm to people from fire or explosion. Dangerous substances include petrol, LPG, paints, varnishes, solvents and dusts e.g. from milling or sanding operations. UCL – ACOP Explosive Atmosphere 1.3 Guidance 1.3 UCL – ACOP 1.4 A mixture, under atmospheric conditions, of air and one or more “dangerous substances” in the form of gases, vapours, mists or dusts in which after ignition has occurred, combustion spreads to the entire unburned mixture. An accumulation of gas, mist, dust or vapour which could catch fire or explode when mixed with air. Explosive atmospheres do not always explode but if they catch fire the flames can rapidly travel through them. If this happens in a confined space (e.g. in plant, equipment or laboratory scale reaction vessels) the rise in pressure and rapid spread of flames could cause an explosion. Substances Hazardous to Health Substances (including preparations) which are classified as very toxic, toxic, harmful, corrosive, irritant, carcinogenic, dust, biological agent, any substance assigned a WEL (see 1.10) and any substance that is used or present in the workplace that creates a risk to health. Guidance 1.4 This definition includes gases and vapours that at high concentrations in air can reduce the oxygen content and therefore be a threat to life. UCL – ACOP R-phrases 1.5 Standard risk phrases which give advice on the risks associated with particular substances. R-phrases are specified by the Chemicals (Hazard Information and Packaging for Supply) Regulations 2002. Guidance 1.5 R-Phrases can be found on labels and safety data sheets which are provided by suppliers for each substance. A key to the phrases can be found in Appendix 2, “Sources of Information” Page 4 of 25 UCL Safety Services UCL ACOP: Working with Substances UCL – ACOP S-phrases 1.6 Standard safety phrases which give advice on the precautions necessary when working with particular substances. S-phrases are specified by the Chemicals (Hazard Information and Packaging for Supply) Regulations 2002. Guidance 1.6 S-Phrases can be found on labels and safety data sheets which are provided by suppliers for each substance. A key to the phrases can be found in Appendix 2, “Sources of Information”. UCL – ACOP Biological Agent 1.7 Guidance 1.7 Any micro-organism, cell culture or human endoparasite, including any that have been genetically modified, which may cause any infection, allergy, toxicity or otherwise create a hazard to human health. The definition of a micro-organism includes non-cellular microbiological entities (such as viruses). There are two possible ways by which people could be exposed to biological agents at the workplace; a) a deliberate intention to work with them i.e. for research, teaching or diagnostic purposes; b) as a result of a work activity i.e. working on or near potentially contaminated water or handling waste; UCL – ACOP Carcinogen 1.8 Any substance or preparation which is known to be or regarded as carcinogenic to humans or listed in or arising from a process specified in Schedule 1 (COSHH Regulations 2002) Guidance 1.8 Substances labelled with the risk phrase R45 (may cause cancer) or R49 (may cause cancer by inhalation) or arising from a process specified by Schedule 1 of the COSHH Regulations 2002. See Appendix 1. See also “Sources of Information” Appendix 2. UCL – ACOP Dust 1.9 Dust of any kind when present at a concentration in air equal to or greater than: • 10mg/m3 inhalable dust; • 4mg/m3 respirable dust; as a time-weighted average over an 8-hour period. Guidance 1.9 In practical terms if dust is detectable i.e. it can be seen in the air or lies on surfaces in the vicinity of the dust producing activity then measures must be taken to control exposure. If the activity is carried out routinely e.g. cutting wood with a circular saw then local exhaust ventilation should be considered. If the activity is non-routine or non mechanical then it may be sufficient to provide good general ventilation and personal protective equipment (PPE). UCL – ACOP Workplace Exposure Limit (WEL) 1.10 A number of substances hazardous to health have been given a workplace exposure limit (WEL). A WEL is the maximum concentration of an airborne substance, averaged over eight-hour and/or 15-minute reference periods, to which employees may be exposed by inhalation. Page 5 of 25 UCL Safety Services UCL ACOP: Working with Substances Guidance 1.10 WELs are published by the HSE in their guidance document EH40 and by suppliers in the safety data sheets that are prepared and supplied for each substance. A substance that has not been assigned a WEL is not necessarily harmless. Seek advice from the supplier about suitable exposure levels i.e. a level that will allow exposure day after day without any harmful health effects. UCL – ACOP Control Measures 1.11 A measure taken to reduce exposure to a substance • engineered controls (e.g. safety cabinets, fume cupboards) • management controls (e.g. supervision & safe operating procedures) • personal protective equipment UCL – ACOP Hierarchy of risk control 1.12 A sequence of control measures starting with the most stringent which must be applied where the risk to health is greatest. Guidance Control measures should be applied in the following order of priority according to the magnitude of risk as identified by the risk assessment: • • 1.12 • • • changing the process or activity so that the substance is not needed or generated; replace the substance with one that is less harmful or use in a different form; engineered controls; management controls; personal protective equipment. UCL – ACOP Competence 1.13 People who have the skills, knowledge and experience required to discharge safely a particular duty and who know the limits of their competence and seek advice when reaching those limits. UCL – ACOP Reasonably practicable 1.14 If a precaution is practicable it must be taken, unless the cost in achieving a gain in safety is grossly disproportionate to the benefit. Guidance 1.14 The term “so far as is reasonably practicable” is interpreted by the courts as allowing economic considerations to be taken into account as one factor with time or trouble to be set against the risk. UCL – ACOP Respiratory sensitisers 1.17 A substance which when breathed in can trigger an irreversible allergic reaction in the respiratory system. When the sensitisers are work-related the resultant condition is occupational asthma. Guidance 1.17 Sensitisation does not usually take place right away. It can happen after several months or years of being exposed to a substance. Look for substances labelled R42 “May cause sensitisation by inhalation”. See also Appendix 2, “Sources of Information” for a link to the HSE site on asthma which lists the commonest workplace sensitisers. Page 6 of 25 UCL Safety Services UCL ACOP: Working with Substances UCL – ACOP Manager 1.18 An individual responsible to the Head of Department for the management and/or supervision of work activities, work areas, staff and students. Guidance 1.18 The term manager is used throughout this document and applies to principal investigators, laboratory superintendents, office managers and the equivalent. UCL – ACOP Monitoring 1.19 Monitoring is a systematic process carried out to compare what is observed or measured with a pre-agreed procedure or standard. Guidance In terms of this document monitoring has two meanings: 1. 2. 1.19 Checking the correct operation of risk control systems e.g. codes of practice, instruction sheets etc; Measuring the amount of a substance in the air when process controls cannot completely prevent exposure. 2 Management responsibility, supervision and other duties UCL – ACOP 2.1 Guidance 2.1 Head of Department (HOD) The Head of Department is responsible to Provost and Council for the safe management of work with substances in accordance with the UCL Statement of Safety Policy (SSP) and the Departmental Statement of Safety Policy (DSSP). The duties of the HOD for ensuring the safe management of work with substances are the same as those for all other aspects of safety management as described in the UCL SSP. The HOD authorises specific staff to work with, or supervise work with, certain categories of substances based on that individual’s competence. UCL – ACOP Managers 2.2 The Head of Department delegates the duty to ensure safe working with substances to senior departmental staff appropriate to the local departmental arrangements. Guidance This delegated duty is the normal pattern for the supervision of work. If the manager is absent from the department they should delegate the day-to-day management of the work to a named member of the team who is suitably skilled and experienced to carry out the necessary management duties. These 2.2 management duties include assessment of risk and ensuring the implementation of the risk control measures required by their assessments. It is the duty of the person supervising the work to ensure that all staff students and visitors are informed of any precautionary measures they must observe. UCL – ACOP Staff and Students 2.3 Staff and students working with substances must observe the control measures required as a result of the risk assessment of their work and any other measures as directed by UCL or the Department that are designed to protect their health and safety. In taking due care for their own safety they shall have regard for the safety of others. This duty applies also to visitors to the Department. Page 7 of 25 UCL Safety Services UCL ACOP: Working with Substances Guidance These duties are in accordance with and do not exceed the duties imposed on employees under s. 7 of the health and Safety at Work Act 1974. Graduate students are treated for the purposes of this ACOP as if they were employees. Visitors to the Department who are undertaking work may be treated as if they were employees but care should be taken to supervise their work. Despite the fact that they may be experienced, they are not likely to be knowledgeable about UCL and its systems and procedures. 2.3 UCL – ACOP 2.4 Guidance 2.4 Departmental Safety Officer (DSO) The DSO is appointed by the Head of Department to monitor the day-to-day standard of safety management in the department. Where appropriate i.e. the department exists on more than one site, it may be necessary to appoint one or more deputies. The Departmental Safety Officer (DSO) role is to assist in monitoring the department’s compliance with this ACOP. It is not the duty of the DSO to carry out risk assessments but to ensure that they have been carried out and to bring to the attention of the Head or departmental management any non-compliance with departmental arrangements for safe working with substances. UCL – ACOP Visitors 2.5 Visitors engaged on work involving substances must observe the risk control measures required as a result of the risk assessment, and take due care for their own safety and that of others. Guidance 2.5 Visitors are non-departmental employees including contractors, maintenance workers, cleaners, etc. (though they might be UCL employees) who may be permitted to enter areas where work with substances is conducted. Visitors (including observers, contractors, etc.) should be provided with relevant safety information including the precautions necessary to ensure their safety while on site. 3 Controlling Access to Substances UCL – ACOP 3.1 The HOD must ensure that those who have access to substances have the competence to use them or supervise their use. Guidance Access • • • means the; authority to purchase or receive substances; ability to retrieve them from storage i.e. have physical access to them; authorisation to use them in work processes. It is the Head of Department’s duty to authorise senior managers to have access to substances based on that person’s competence. These managers will in turn be responsible for assessing the competence of the individuals whom they supervise and ensuring an appropriate level of access to substances according to the competence of that individual. UCL has developed a system of categorising substances that ensures an appropriate level of control can be exercised. In this context control relates to restricting access to substances in such a way that the most hazardous are only available to a minority of competent people. Page 8 of 25 UCL Safety Services UCL ACOP: Working with Substances These categories are not listed purely according to hazard; they take into account the circumstances in which a substance is used and the likely knowledge of the people who are using it. The categories are defined as follows: Category 1 This category applies to all Departments Substances in category 1 may be accessed by the majority of staff groups e.g. cleaning products, photocopier toner etc. Category 2 This category applies mainly to workshops and studios Substances used in processes of a routine kind which are used in accordance with standard procedures i.e. manufacturer's instructions or best practice e.g. impact adhesives, degreasing agents, white spirit, cutting oil, etching reagents, flux-cored solder, varnish spray, welding gases, lithium sulphide grease. Category 3 This category applies to laboratory work Substances used in laboratory processes where the hazardous properties of the substance are unchanged e.g. substances used in tissue section preparation, HPLC, optical rotation measurements and many other routine laboratory activities. Category 4 This category applies to laboratory work Substances used in laboratory processes which: a. change the nature of the hazard by chemical reaction; b. are of a larger scale than routine bench work; c. involve continuous flow processes; d. involve biological agents which are classified by the ACDP as belonging to hazard group 2, (see appendix 4 for Hazard Group Definitions), or for which a DEFRA licence is required; e. when mixed with air can form an explosive atmosphere. Category 5 This category applies to laboratory work Substances which are exceptionally hazardous e.g. carcinogens, neurotoxins or other highly toxic or hazardous materials and biological agents classified as belonging to ACDP hazard group 3 (see Appendix 4 for Hazard Group Definitions). In order to assist Departments to produce arrangements to achieve control of access to substances a guidance document and notification form can be found at appendix 3. 3.1 4 Assessment of the risks of working with substances UCL – ACOP 4.1 Managers must ensure that before work begins the hazardous properties of any substance(s) to be used is (are) identified. Guidance There are many sources of information which will assist you to identify the hazardous properties of substances. These include; • labels on substances give information on hazards and precautions; • safety data sheets, provided by the supplier, which list information under several headings including hazards, precautions handling, storage, disposal and fire fighting measures. • Approved list of Biological Agents. See Appendix 2, “Sources of Information”; Guidance published by the HSE. See Appendix 2, “Sources of Information” The Internet. See Appendix 2, “Sources of Information” • • The information gathered is not in itself an assessment of risk as the risks will vary according to the way in which the substance is used, the quantity and the people involved, but provides the basis for carrying out the assessment. 4.1 Page 9 of 25 UCL Safety Services UCL ACOP: Working with Substances UCL – ACOP 4.2 Guidance Managers must ensure that when the hazardous properties of substances have been identified a suitable and sufficient assessment of the risks to health and safety created by the work must be made. In the majority of routine processes and procedures a generic risk assessment will already have been carried out. This will mean that the control measures for substances in UCL categories 1 and 2 may already be detailed in the manufacturers’ instructions for use. For category 3 substances a laboratory code of practice (COP) or standard operating procedure (SOP) will have been developed and form part of the department’s arrangements for managing safety. It is important to note that although in these cases the process or procedure will remain the same, the location and/or people involved may vary and it is for the manager to ensure that the precautions that are in place are still adequate under all circumstances. A generic risk assessment may not be appropriate for category 4 and 5 substances which are not used routinely and where the risks are high. A suitable and sufficient assessment must include: • an assessment of the risks to health and safety arising from substances used in or created by workplace activities by any route: i.e. inhalation; absorption through the skin or mucous membranes; contact with the skin or mucous membranes; ingestion; injection; or as a result of fire or explosion; • identification of people who could be exposed; including visitors, cleaners, maintenance staff and vulnerable individuals e.g. those with a known • • • • • • • 4.2 allergy to a substance or who are pregnant; the practicality of preventing exposure or where this is not possible the steps necessary to control exposure to the risks, see 5.2 & 5.3 “Measures to Prevent or Control the Risk of Exposure”; storage arrangements for substances; segregating non-compatible substances; suitable containers, cabinets and storage areas; measures to prevent access to substances by non-departmental personnel; unauthorised departmental staff, see 3.1 “Controlling Access to Substances”; arrangements for transporting substances within the building, between buildings or institutions. See Appendix 2, “Sources of Information”; hazard warning signs and labelling for storage areas, containers for transportation or for decanted or waste substances; areas where the risk assessment identifies the likelihood of an explosive atmosphere being present; emergency procedures should be prepared to deal with: first aid, the first aiders for your area must be made aware of substances that have specific first aid treatment e.g. hydrofluoric acid; spill procedures, you should have enough suitable absorbent material to deal with the largest spill that could occur; fire fighting measures, some substances require specialist fire extinguishers; disposal of waste substances which includes the packaging and the containers i.e. bottles and jars. See Appendix 2, “Sources of Information” for waste disposal arrangements. Increasingly, UCL Cleaning and Waste Services are being asked to dispose of substances which are unopened or almost unused. It is often more expensive to dispose of a substance than to purchase it. This is not only wasteful in terms of resources (cost, time and space) but from an environmental viewpoint it is unacceptable. As part of the assessment of risk you should only order the amount of a substance that you expect to use in a given period. Although it may be cheaper to buy larger quantities many substances have short shelf lives. Storing limited quantities of a substance reduces the risk from spillage, requires less storage space, keeps disposal costs to a minimum and reduces the contribution a substance may make to the spread and intensity of fire. Page 10 of 25 UCL Safety Services UCL ACOP: Working with Substances 5 Measures to prevent or control the risk of exposure UCL – ACOP 5.1 Guidance Managers must ensure that exposure to substances is prevented or adequately controlled by measures other than personal protective equipment. 5.1 The purpose of the risk assessment process described in section 4 is to enable managers to select the most suitable controls or combination of controls that are proportionate to the risk. UCL – ACOP 5.2 Managers must ensure that exposure to substances is prevented if it is reasonably practicable to do so. Guidance Preventing exposure can be achieved by: • changing the process or activity so that the substance is not needed or generated i.e. dusts or aerosols; • 5.2 • replace the substance with one that is less harmful; substances which are carcinogenic should only be used if carcinogenicity is the property being investigated or there is no other suitable alternative; use the substance in a different form e.g. pellets instead of powder. UCL – ACOP 5.3 Where it is not reasonably practical to prevent exposure to substances Managers must ensure that exposure is adequately controlled. Guidance If preventing exposure is not possible then exposure must be controlled in such a way that the health of staff and students is not affected by the substances in use. Methods of control are: • engineered controls e.g. general ventilation, local exhaust ventilation; • management controls e.g. supervision and safe operating procedures. 5.3 UCL – ACOP 5.4 Guidance 5.4 Where measures to control exposure are not in themselves adequate to achieve control then Managers must ensure that appropriate personal protective equipment is also provided. PPE may be used as additional protection in combination with other control measures such as local exhaust ventilation. Seek the advice of the supplier to ensure that the PPE selected is appropriate protection for the substance in use. Respiratory protective equipment (RPE) should not be used for routine tasks. It may be used as an interim measure while engineered controls are installed or when dealing with emergency situations or one-off situations or periodic maintenance. See Appendix 2, “Sources of Information” for advice and guidance on PPE. UCL – ACOP 5.5 Adequate control will have been achieved when exposure to a substance has been reduced to a level unlikely to cause harm. Guidance For inhalable substances control will have been achieved if: • pre-agreed standard has not been breached; • exposure is well bellow the WEL. 5.5 Page 11 of 25 UCL Safety Services UCL ACOP: Working with Substances 6 Use of control measures UCL – ACOP 6.1 Managers must ensure that the control measures, which are provided to reduce the risk of exposure to substances, are used correctly. Guidance Managers and supervisors must ensure that staff and students are given sufficient instruction and information to enable them to use control measures correctly. This will involve varying degrees of supervision according to the competence of the individual, periodic inspection while work is underway and ensuring a system for fault reporting is in place. A system for the repair or replacement of faulty items should also be developed. 6.1 UCL – ACOP 6.2 Guidance 6.2 Staff and students must use the control measures, which are provided to reduce the risk of exposure to substances, as instructed. They must report any faults or deficiencies in the control measures to their manager. Staff and students must use the control measures that have been provided in the way they have been instructed and according to the information which they have been given. They must also report any faults or deficiencies in accordance with the system that is in place. 7 Maintenance, examination and test of control measures UCL – ACOP 7.1 Guidance Managers must ensure that the measures which are employed to prevent or control exposure to substances are maintained in efficient working order, in good repair and in a clean state. Managers must ensure that a system for fault reporting is established. In order to ensure that control measures perform as they were originally intended i.e. continue to prevent or adequately control exposure to substances they should be maintained as follows: • Engineered controls e.g. fume cupboards, • visually inspected at least once a week; • maintained according to the manufacturers instructions; • examined and tested against its performance standard by a competent person every 12-14 months. Keep records of this for at least 5 years; • cleaned regularly; • decontaminated when contamination occurs or is suspected. Personal Protective Equipment • cleaned and maintained according to manufacturers instructions; • visually inspected for damage or contamination each time it is worn; • decontaminate or dispose of when contamination occurs or is suspected or as recommended by manufacturer, (PPE may be single use); • dispose of in accordance with UCL waste procedures; • stored in a well defined place separate from outdoor clothing and belongings Fault reporting In all cases a system must be in place to enable faults or problems to be reported by individuals and procedures established for removal from use, repair and/or replacement of faulty equipment. The system must include a named individual who is responsible for ensuring this is carried out. Record Keeping 7.1 Records of maintenance and inspection of PPE and engineered controls must be kept. Records of annual testing and examination of engineered controls must be kept for 5 years. Page 12 of 25 UCL Safety Services UCL ACOP: Working with Substances 8 Information, Instruction and Training UCL – ACOP 8.1 Managers must ensure that all those who work with or who may be affected by substances that are in use are provided with information. Guidance The findings documented in the risk assessment should be communicated to all who will be affected by the work including visitors and others, where necessary, who may not be directly participating in the work. 8.1 In addition to the findings of the risk assessment staff and students must be provided with information about the substances they are working with. This will include: • the name of the substances and the hazards; • the risks which they present to health and safety; • symptoms of associated health problems and procedures for reporting; • WEL, access to the safety data sheet; • the precautions they must take to prevent or control exposure; • how to use control measures, including PPE; • emergency procedures; • the system in place for reporting faults. UCL – ACOP 8.2 Managers must provide suitable instruction and training to staff and students working with substances. Guidance The purpose of instruction and training is to ensure that staff and students working with substances do not put themselves or others at risk. Instruction and training should include; • how and when to use control measures; • the method of work; i.e. standard operating procedure; • how to use, clean and store PPE; • what to do in an emergency. • Training should include elements of theory and practice. Record Keeping 8.2 A record of the information, instruction and training that is provided should be kept. This should be in the form of a standard checklist. 9 Monitoring UCL – ACOP 9.1 Managers must monitor the implementation of the measures which have been identified to control risk where exposure cannot be prevented. Guidance Inspections of working practices and procedures as described in codes of practice, standard operating procedures or instruction sheets should be carried out periodically. This can be achieved by observing staff and students carrying out normal work routines to ensure that procedures are followed. In addition managers should ensure that access to substances is restricted to the staff and students whom they have authorised to use them. Record Keeping 9.1 UCL – ACOP 9.2 Results of inspections may be recorded in the form of a checklist which provides a record and ensures a consistent approach. Managers must ensure that exposure to substances in the general workplace is monitored under circumstances where prevention of exposure cannot be prevented by engineering controls. Page 13 of 25 UCL Safety Services UCL ACOP: Working with Substances Guidance Most engineered controls do not provide 100% protection e.g. ventilated benches and fume cupboards therefore where routine procedures are carried out it is not unreasonable to periodically monitor exposure. Air monitoring can confirm that the control measures in place are working as intended with the current reading being compared with the previous. This is important where a substance has been assigned a WEL because these substances have the most serious health effects and therefore exposure must be adequately controlled i.e. exposure must be well below this level. Where these substances are used routinely i.e. in processes carried out daily then periodic monitoring of exposure would be appropriate. Detection tubes The simplest method of air monitoring is with diffusion tubes which although designed as a personal monitor can be used to monitor areas e.g. laboratories. They are however only available for a limited number of gases and vapours. They must never be used to replace suitable control measures but to confirm that control measures are working. Depletion Monitors Many asphyxiate gases are colourless and odourless and cannot be detected easily. In certain locations there is potential for large quantities of these inert or low toxicity gases (e.g. nitrogen) to be released. This can be as a result of a failure in pressurised equipment or a slow build up in badly ventilated areas. This can result in the displacement of oxygen in the immediate environment and lead to the risk of asphyxiation. Under these circumstances it is appropriate to monitor the oxygen content of the air to give an early warning that a problem exists. Warning monitors must not be installed as a substitute for equipment maintenance and good working procedures. Depletion monitors must be maintained and serviced in accordance with the manufacturer’s instructions and emergency procedures must be produced to ensure that everyone who may be involved knows what to do should it be activated. N.B. O2 depletion monitors are not suitable for areas where the risk is from CO2 build up. In these situations a CO2 monitor is appropriate. Record Keeping 9.2 Records of the results of monitoring must be kept. Where depletion monitors are installed a record of activation should be kept and the result of any investigation and the actions taken. 10 Health surveillance UCL – ACOP 10.1 Employers must provide suitable health surveillance if employees are exposed to certain substances. Guidance If health surveillance is required it will be conducted by UCL Occupational Health Service. It is the responsibility of the supervisor of work involving substances which require health surveillance to inform UCL Occupational Health Service. Health surveillance is only required: • when an employer is working in a process listed in schedule 6 of the COSHH Regulations (see Appendix 1) and is likely to receive significant exposure to the substances listed; • where employees are exposed to a substance linked to a particular disease or adverse health effect and there is both: • a reasonable likelihood under the conditions of that work of that disease or health effect occurring and it is possible to detect that disease or health effect. • Some of the conditions and the risk factors are as follows: • Dermatitis R43 (May cause sensitisation by skin contact). The correct choice of control measures will ensure that most cases of dermatitis are prevented. Page 14 of 25 UCL Safety Services UCL ACOP: Working with Substances • • • Cancer R45 (May cause cancer), R49 (May cause cancer by inhalation). Strict control of substances or work processes which may cause cancer is essential. Asthma R42 (May cause sensitisation by inhalation). Diseases caused by micro-organisms in Hazard Groups 2, 3 & 4. Record Keeping 10.1 Records of the outcome of health surveillance must be kept by the employer for 40 years. The full health surveillance record will be kept by UCL Occupational Health Service for 40 years; 11 Consultation UCL – ACOP 11.1 When introducing new substances and techniques anyone who may be affected must be consulted and informed of any possible health effects. Guidance The aim of consultation is to provide information to others who, while they may not be directly involved in the work, might nevertheless be adversely affected by the work. Matters for consideration include not only health issues but also the possibility of conflicting or hazardous interactions between work activities. This may occur between groups sharing the same work space or departments sharing the same building. Consultation does not imply veto. However, it is necessary to ensure that all relevant information is gathered for risk assessment purposes. Consultation may involve, for example, the Departmental Safety Committee or other formal staff/student consultative process or staff safety representatives. 11.1 12 Record keeping UCL – ACOP 12.1 Departments must ensure that records, relating to the work activities that are conducted on its behalf, are kept. Guidance Managers are responsible for maintaining records relating to the staff, equipment and work activities within their areas of responsibility. Records of: • significant findings of the risk assessment; • the results of annual testing and examination of engineered controls; records must be kept for 5 years; • maintenance of equipment LEV, PPE etc.; routine and as a result of faults; • the results of monitoring or inspections that have been carried out; • 12.1 the outcome of health surveillance must be kept by the employer for 40 years; the full health surveillance record will be kept by UCL Occupational Health Service for 40 years; • the information, instruction and training that has been given to individuals. Copies of these records may be passed to the Departmental Safety Officer for Departmental Records. The DSO is not responsible for maintaining the records which form part of the supervisor’s management of the work. UCL – ACOP 12.2 Records may be kept in any format but must be comprehensible and readily retrievable for inspection. Guidance Records may be kept in writing or recorded electronically or any other easily retrievable format. They must, however be available for examination at any reasonable time by the Head of Department, Safety Representatives, HSE inspectors, Safety Services etc. Records must be presented in such a way that they are understood by those who inspect them. 12.2 Page 15 of 25 UCL Safety Services UCL ACOP: Working with Substances 13 Review of risk assessments UCL – ACOP 13.1 Guidance The assessment of risk must be reviewed at 12 monthly intervals or sooner if there is any reason to suspect the assessment is no longer valid or if there has been a significant change to the work. The assessment may no longer be valid because: new information on the substance, being used, has come to light; • the results of periodic tests and examinations of engineering controls indicates a problem; e.g. reduced effectiveness • there is a confirmed case of occupationally-induced disease; • the results from monitoring activities indicate that controls are not working or not being used properly; • an accident or incident indicates a failure in the system of control. A significant change in the work would be if: • the substance which was originally assessed is changed for another; • the quantity or form e.g. pellet, powder, of the substance used is changed; • • there is a change in the process used, the people involved or the way in which the work is carried out; there is a change/modification in the plant or the engineered controls. 13.1 Page 16 of 25 UCL Safety Services UCL ACOP: Working with Substances Appendix 1 Schedule 1 (COSHH Regulations 2002) Other substances and processes to which the definition of ‘carcinogen’ relates Aflatoxins. Arsenic. Auramine manufacture. Calcining, sintering or smelting of nickel copper matte or acid leaching or electrorefining of roasted matte. Coal soots, coal tar, pitch and coal tar fumes. Hardwood dusts. Isopropyl alcohol manufacture (strong acid process). Leather dust in boot and shoe manufacture, arising during preparation and finishing. Magenta manufacture. Mustard gas (ß, ß’ -dichlorodiethyl sulphide). Rubber manufacturing and processing giving rise to rubber process dust and rubber fume. Used engine oil. Schedule 6 (COSHH Regulations 2002) Medical Surveillance Substances for which medical surveillance is appropriate Vinyl chloride monomer (VCM). Process Nitro or amino derivatives of phenol and of benzene or its homologues. In manufacture of nitro or amino derivatives of phenol and of benzene or its homologues and the making of explosive with the use of any of these substances. Potassium or sodium chromate or dichromate. In manufacture. Ortho-tolidine and its salts. Dianisidine and its salts. Dichlorobenzene and its salts. In manufacture, formation or use of these substances. Auramine. Magenta. In manufacture. Carbon disulphide. Disulphur dichloride. Benzene, including benzol. Carbon tetrachloride. Processes in which these substances are used, or given of as vapour, in manufacture of indiarubber or of articles or goods made wholly or partially of indiarubber. Pitch. In manufacture of blocks of fuel consisting of coal, coal dust, coke or slurry with pitch as a binding substance. In manufacture, production, reclamation, storage, discharge, transport, use or polymerisation. Page 17 of 25 UCL Safety Services UCL ACOP: Working with Substances Appendix 2 Sources of Information Topic Biological agents Source See: http://www.hse.gov.uk/pubns/misc208.pdf Contact: Safety Services ext. 28854 for advice Carcinogens IARC Classification of carcinogens list see: http://www.iarc.fr/ Chemicals See: http://www.hse.gov.uk/pubns/chindex.htm Dangerous pathogens See: http://www.hse.gov.uk/pubns/danpath.htm Electrical/electronics See: http://www.hse.gov.uk/pubns/elecindx.htm Engineering See: http://www.hse.gov.uk/pubns/engindex.htm Gases See: http://www1.boc.com/uk/sds/ Flammable Substances See: http://www.hse.gov.uk/pubns/flamindx.htm Fire and Explosion See: http://www.hse.gov.uk/pubns/flamindx.htm Contact: Safety Services ext. 28854 for advice contact: College Fire Officer ext. 41240 for advice contact: College Fire Officer ext. 41240 for advice Occupational Asthma See: http://www.hse.gov.uk/asthma/index.htm OR http://www.hse.gov.uk/pubns/indg95.pdf Contact: Occupational Health Service ext. 32802 for advice Personal Protective Equipment See: http://www.hse.gov.uk/pubns/ppeindex.htm Printing See: http://www.hse.gov.uk/pubns/printidx.htm Risk assessment See: http://www.ucl.ac.uk/efd/safety_services_www/guidance/risk_assessment/index.htm Safety Data Sheet Why do you need one? See:http://www.hse.gov.uk/pubns/indg353.pdf Safety & Risk Phrases See: http://www.hse.gov.uk/chip/phrases.htm Waste Disposal See: http://www.ucl.ac.uk/efd/efm_www/cleaningandwaste/waste/waste.shtml OR http://www.ucl.ac.uk/efd/safety_services_www/guidance/ppe/index.htm Contact: Cleaning and Waste Services ext. 37001 Woodworking See: http://www.hse.gov.uk/pubns/woodindx.htm Page 18 of 25 UCL Safety Services UCL ACOP: Working with Substances Appendix 3 Guidance for Creating Arrangements for Controlling Access to Substances Defining the scope of your arrangements The first step for a department in creating these arrangements will be to define their scope in order to limit the arrangements to an appropriate scale. The scale is determined by the nature and variety of work with substances at UCL which has been defined as falling into the following 5 categories. Departments should define the level of control they are exercising by adopting one or more of the following statements, as appropriate. Category 1 Statement This category applies to all departments, since they all carry out office-based work, whether administrative and/or academic. This statement needs to be completed and brought to the attention of all staff. The Department uses substances of a domestic or office nature for which all staff are required to observe any precautionary advice given by the supplier. All purchases of this kind are made by <name or staff group > who is/are aware of these arrangements and the control which they must exercise. For this category no particularly elaborate system of purchasing control is necessary or appropriate, other than those required by Financial Regulations. Authorised purchasers must ensure that any proposed purchase satisfies the declaration made in the first sentence and does not fall into category 2. Departments should then select the categories, from those remaining, which apply to their work and disregard those which do not. The definition of scope should take the following forms:- Category 2 Statement This category applies to departments with workshops (e.g. engineering, electronic) and photographic studios etc. Substances are used in our <engineering / workshop / photographic processes>; these are processes of a routine kind and the substances involved are always used in accordance with standard procedures i.e. manufacturer's instructions. It is Departmental policy that all users are made familiar with those procedures by their managers. The following people are authorised to use or supervise the use of the substances listed; Manager J Smith Substance(s) or class of substances impact adhesives, degreasing agents, "super glue", white spirit, cutting oil A Robinson etching reagents, flux-cored solder, varnish spray, welding gases, lithium sulphide grease The named manager will ensure that these materials are used only by competent staff who can be relied upon to use them in accordance with manufacturer's instructions or by less experienced staff under the supervision of experienced staff. Page 19 of 25 UCL Safety Services UCL ACOP: Working with Substances Authorised managers must ensure that any proposed purchase satisfies this declaration. The remaining three categories apply to laboratory work. Category 3 Statement The Department uses substances in laboratory processes which do not involve any change to the nature of the material. The following people are authorised to use or supervise the use of the substances listed; Manager Substance or Class Process J Pilkington various organic solvents tissue section e.g. toluene, ethanol preparation I Kharasch various naturally optical rotation occurring compounds measurements e.g. lactic acid, etc M Thompson acetonitrile, methanol HPLC etc These managers are responsible for the assessment of the risks involved in the handling and disposal of these substances and for ensuring that all workers authorised by them to work with these substances, understand the precautions they are required to take. Only those named managers are authorised to bring the substances attributed to them into the Department. This category includes micro-organisms which can safely be handled in the laboratory using good microbiological practice (GMP), i.e. biological agents classified as “hazard group 1” according to the ACDP1 guidance “Categorisation of biological agents according to hazard and categories of containment2 ”. Category 4 Statement Unlike the other categories, this category covers certain laboratory processes, which create increased risk due to scale, etc. The Department uses hazardous substances in laboratory processes which a. change the nature of the hazard by chemical reaction. b. are of a larger scale than routine bench work. c. involve continuous flow processes. d. involve biological agents which are classified by the ACDP as belonging to hazard group 2, or for which a DEFRA licence is required3 . e. which when mixed with air can form an explosive atmosphere i.e. ‘dangerous substance’ The following people are authorised to use or supervise the use of the substances listed; 1 Manager R Woodward Substance(s) or class Process heterocyclic acids, esterification dimethyl sulphate R Woodward ether (10l), magnesium large scale Grignard (100g), alkyl halides (2- reactions 300g) Advisory Committee on Pathogens. Categorisation of biological agents according to hazard and categories of containment. Fourth Edition 1995 ISBN 0-71761038-1. Approved list of biological agents revised 1998. Page 20 of 25 UCL Safety Services 2 UCL ACOP: Working with Substances J Wilkinson A Fleming low boiling olefins, continuous flow over oxygen (large cylinder) heated catalysts various mould species culturing and extraction of metabolites These managers are responsible for the assessment of the risks involved in the handling and disposal of these substances and for ensuring that all workers authorised by them to work with these substances, understand and observe the precautions which they are required to take. Only those named managers are authorised to bring the substances attributed to them into the Department. Category 5 Statement Some work in the Department involves the use of exceptionally hazardous substances (e g carcinogens, neurotoxins or other highly toxic or hazardous materials and biological agents classified as belonging to ACDP hazard group 3). The following people are authorised to use or supervise the use of the substances listed; Manager Substances Processes S Winter benzidine, aflatoxin, benzpyrene effects on specific cultured cells M Faraday F Sanderson osmium tetroxide electron microscopy prepn DFP, atropine, choline mechanism of neurotoxins esterase G Wilkinson carbon monoxide, salts of rhodium, iridium, platinum high pressure reactions These managers are responsible for the assessment of the risks involved in the handling and disposal of these substances and for ensuring that all workers authorised by them to work with these substances, understand and observe the precautions which they are required to take. Only those named managers are authorised to bring the substances attributed to them into the Department. 3 I.e. present significant environmental risk through pathogenicity to plants or animals. Page 21 of 25 UCL Safety Services UCL ACOP: Working with Substances NOTIFICATION OF USE OF SUBSTANCES This form should be completed by Managers and is the first step in the risk assessment process MANAGER UNIT My current work involves the use of various substances according to the categories described in the guidance document:- CATEGORY 2 SUBSTANCES Processes of a routine kind where the substances are used according to standard procedures i.e. manufacturers instructions Name the substances:- Individuals/groups whom I authorise to access the above substances are: CATEGORY 3 SUBSTANCES Substances used in laboratory processes which do not involve changes to the hazardous nature of the material and biological agents classified as belonging to ACDP guidance hazard group 1. Name the processes:- As an indication of the level of hazard involved, I would regard the following materials to be among the most hazardous:- Individuals/groups whom I authorise to access the above substances are: Page 22 of 25 UCL Safety Services UCL ACOP: Working with Substances Hazardous substances in laboratory processes which lie within the following descriptions:a. Chemical reactions of the general type:- CATEGORY 4 SUBSTANCES As an indication of the level of hazard involved, I would regard the following substances or products to be among the most hazardous:- Individuals whom I authorise to access the substances involved in the above processes are: b. The following processes carried out on a scale larger than 100g material, 1l of solution or larger than that described in the standard literature:- Individuals whom I authorise to access the substances involved in the above processes are: c. The following continuous processes are carried out:- Individuals whom I authorise to access the substances involved in the above processes are: Page 23 of 25 UCL Safety Services UCL ACOP: Working with Substances d. The following biological agents, rated ACDP guidance hazard group 2, or require a DEFRA licence are involved:- Individuals whom I authorise to have access to the above substances are: e. The following ‘dangerous substances’ which when mixed with air can form explosive atmospheres:- Individuals whom I authorise to have access to the above substances are: CATEGORY 5 SUBSTANCES Substances which are categorised as exceptionally hazardous and biological agents classified as belonging to ACDP guidance hazard group 3. Substance and Use Individuals whom I authorise to have access to the above substances are: I will ensure that these materials are used only by experienced /competent staff who can be relied upon to use them in accordance with the control measures identified by a risk assessment or by less experienced staff under the supervision of experienced staff. MANAGERS SIGNATURE DATE I authorise the above supervisor to access, use and supervise the use of the substances identified in this form. HEAD OF DEPARTMENTS SIGNATURE DATE Page 24 of 25 UCL Safety Services UCL ACOP: Working with Substances Appendix 4 Definitions of Hazard Groups From ACDP Guidance “Categories of biological agents according to hazard and categories of containment” Hazard Group 1: A biological agent unlikely to cause human disease. Hazard Group 2: A biological agent that can cause human disease and may be a hazard to employees; it is unlikely to spread to the community and there is usually effective prophylaxis or effective treatment available. Hazard Group 3: A biological agent that can cause severe human disease and presents a serious hazard to employees; it may present a risk of spreading to the community, but there is usually effective prophylaxis treatment available. Hazard Group 4: A biological agent that causes severe human disease and is a serious hazard to employees; it is likely to spread to the community and there is usually no effective prophylaxis or treatment available. UCL-ACOP Working with Substances First Published Reviewed May 2005 Page 25 of 25 UCL Safety Services