R I S K A S S E S S M E N T S RISK ASSESSMENTS (GENERAL) POLICY AND GUIDANCE P O L I C Y A N D G U I D A N C E 1 Health & Safety Unit 2012 CONTENTS Policy Statement 3 Legal Framework 3 DEFINITIONS Risk Assessment 3 Hazard 3 Risk 3-4 Competency 4 Suitable and Sufficient Assessment 4 CARRYING OUT THE ASSESSMENT Step One - Look For Hazards 5 Step Two – Decide Who Might be Harmed and How 5 Step Three – Assess The Risks 5 Step Four – Record Assessment Findings 5-6 Step Five – Assessment Review 6 Hazard/Risk Control 6-7 Evaluating Risk and Setting Priorities 7-8 APPENDICES 1 Risk Assessment Flow Chart 9 2 Sample Risk Assessment Form 10 3 Hazard Check Lists 11-12-13 14-15-16 2 RISK ASSESSMENTS (GENERAL) POLICY AND GUIDANCE It is the policy of the University that a risk assessment is carried out in respect to all activities, processes and substances and that it is regularly reviewed and documented where necessary. This responsibility rests with Deans/Directors/Heads as stated in the University’s Health & Safety Policy and Organisation document (revised 2010). Deans/Directors/Heads should also nominate competent staff to carry out these assessments. LEGAL FRAMEWORK The University has a responsibility under S2 and 3 of the Health & Safety at Work Act 1974 to ensure, so far as is reasonably practicable, the health and safety of employees and other persons (students, visitors, contractors, etc.) who may be affected by the work activity. The Management of Health & Safety at Work Regulations 1992 further amplify this duty and impose a specific requirement upon the University to carry out a ‘suitable and sufficient’ assessment of all risks to the health and safety of employees and others arising at or from a work activity. Furthermore, all modern legislation now contains a duty to carry out risk assessments for specific types of hazards such as those associated with substances, electricity, noise, manual handling, VDU work, etc. The purpose of this document, therefore, is to: (a) Provide guidance to enable Schools/Services to comply with risk assessment duties as required by relevant law. (b) Introduce a structured, systematic and pro-active approach to the management of risk. (c) Outline the five principal steps to risk assessment. DEFINITIONS RISK ASSESSMENT: A structured and systematic procedure for identifying hazards and evaluating risks in order to prioritise decisions to reduce risks to an acceptable level. HAZARD: Something with the inherent ‘potential to cause harm’. substances, machines, methods of work or work organisation. This can include RISK: Is the chance, great or small, that someone will be harmed by the hazard. The magnitude/scale of the risk is measured in terms of its consequences, frequency and severity. It can be expressed as: RISK HAZARD SEVERITY X LIKELIHOOD/PROBABILITY OF OCCURRENCE HAZARD AND RISK : TWO EXAMPLES Two men are five metres up identical ladders. The hazard of falling off is the same for both men. However, Bill’s ladder is secured, while Ted’s is not. Ted’s risk of falling is, therefore, higher. Worse yet, Ted’s ladder is jutting out into the gangway where the forklifts go by! 3 Take a drum of MEK solvent. MEK is flammable and harmful to health. The drum is sealed and sitting in a flammable liquids store, so while the hazards are there, the risk of harm is much less than when the drum is opened and an operator pours some into a container. If the operator pours it without using gloves or goggles, the risk is even greater. If he pours it out more than once, it is greater still. The examples demonstrate that if precautions/safeguards are built into the work activity the risk of harm is reduced and, in consequence, the potential severity of any injury. COMPETENCY Assessments should be conducted by competent staff nominated by Deans/Directors/Heads. Assessors should have an understanding of the workplace, an ability to make sound judgements and knowledge of the best ways to reduce those risks identified. Competency does not require a particular level of qualification but may be defined as a combination of knowledge, skills, experience and personal qualities, including the ability to recognise the extent and limitation of one’s own competence. SUITABLE AND SUFFICIENT ASSESSMENT A ‘suitable and sufficient assessment’ as required by the Management of Health and Safety at Work Regulations 1992 is one that: Correctly and accurately identifies a hazard. Disregards inconsequential risks and those risks associated with life in general. Determines the likelihood of injury or harm arising. Quantifies the severity of the consequences and the numbers of people who would be affected. Takes into account any existing control measures. Identifies any specific legal duty or requirement relating to the hazard. Will remain valid for a reasonable period of time. Provides sufficient information to enable the Dean/Director/Head to decide upon appropriate control measures, taking into account the latest scientific developments and advances. Enables the School/Service to prioritise remedial measures. If an assessment has already been carried out under any other statutory provision, e.g. Manual Handling Operations Regulations, COSHH, Noise at Work Regulations, etc. no duplicate action is necessary as a result of this document. 4 CARRYING OUT THE ASSESSMENT Step 1 : Look For The Hazards This necessitates an inspection of the workplace to identify what could reasonably be expected to cause harm. Ignore the trivial and concentrate only on significant hazards which could result in serious harm or affect several people. Involve both staff and students in this exercise because they may be aware of hazards which are not immediately obvious. Manufacturers’ instructions, data sheets, check lists and accident records will assist in identifying hazards. Step 2 : Decide Who Might be Harmed and How Take into account staff, students, contractors and members of the public in general as well as those people who may not be in the workplace all the time, e.g. cleaners and maintenance personnel. Consider how such people may be harmed. Pay particular attention to lone workers and those with disabilities since they may be more vulnerable. Step 3 : Assess The Risks Evaluate the risks arising from the hazards and decide whether existing precautions are adequate or more should be done. Even after all precautions have been taken, usually some risks remain. Decide for each significant hazard whether this remaining risk is acceptable. Consider whether the existing precautions: Meet the standards set by legal requirement Comply with a recognised industry standard. Represent good practice. Reduce risk as far as is reasonably practicable. If the answer to any of the above is ‘NO’ then consider what further precautions can be taken to control the risk so that harm is unlikely (see hazard/risk control page 6/7). Step 4 : Record Assessment Findings An assessment should be supported by accurate record keeping unless the identified risk is trivial and the likelihood of injury is remote or that the adverse consequences would result in a very minor injury. The significant risks only, therefore, need to be recorded. Records should contain at least the following information: A description of the process/activity assessed Identification of the significant risks. 5 Identification of any staff/student/visitors at particular risk. Date of assessment and, where appropriate, next review. The name of the person carrying out the assessment. An example of a widely used risk assessment record form is provided in appendix 2; however, any format can be used provided it follows the principles laid down in this policy. Step 5 : Assessment Review An assessment must be kept up to date and reviewed periodically to ensure that it remains valid. Factors that may necessitate an automatic re-assessment include: A change in legislation. A change in control measures. Any significant change in the work carried out. Transfer to new technology. Any other reason to suspect that the original assessment is no longer valid or could be improved. HAZARD/RISK CONTROL The selection and implementation of the most appropriate method of risk or hazard control is crucial to any success in reducing the risk of injury or ill health to persons affected by work activities. A hierarchy of control options are listed but it may be necessary to implement a number of these measures in combination to adequately reduce the risk. The list is not exhaustive: Elimination (e.g. buying ready sawn timber rather than use a circular saw). Substitution by something less hazardous. Total enclosure (enclose it in a way that eliminates or controls the hazard, i.e. processing hazardous substances in an enclosed piped system). Partial enclosure. The use of LEV systems, fume cupboards, etc. Guarding/segregation of people. Permit to work systems e.g. Hot work permit to control fire risks. Reduce the period of exposure. Written procedures that are known and understood by those affected. Adequate supervision. 6 Adequate training/staff and students. Information/instruction (signs, labels, handouts). Personal protective equipment PPE The use of PPE should be regarded as a last resort option in the absence of any more reliable or permanent means of control. All these measures should be considered within the overall context of achieving ‘a safe system of work’ that reduces the risk to an acceptable level. EVALUATING THE RISK AND SETTING PRIORITIES The risk assessment should enable Schools/Services to prioritise remedial measures. In many cases it will be clear that some risks require attention before others. Where there is uncertainty a risk rating may be attributed to each identified hazard. The factors relating to severity and likelihood of harm are given a numerical value and then multiplied together to give a risk rating which can then be used to prioritise remedial actions. 10 8 6 4 2 1 RISK RATING SCALE X Likelihood/Probability 10 Certain 8 Very Likely 6 Likely 4 May Happen 2 Unlikely 1 Very Unlikely Hazard Severity Multiple Death Single Death Major Injury Loss Time Injury Minor Injury Insignificant Injury RISK HAZARD SEVERITY X LIKELIHOOD/PROBABILITY OF OCCURRENCE MATRIX LIKELIHOOD Certain Very Likely Likely May Happen Unlikely Very Unlikely Multiple Death Single Death 100 80 60 40 20 10 80 64 48 32 16 8 SEVERITY Major Lost Time Injury Injury 60 48 36 24 12 6 40 32 24 16 8 4 Minor Injury Insignificant Injury 20 16 12 8 4 2 10 8 6 4 2 1 For the purpose of risk evaluation the matrix shown above can be used to provide an initial breakdown of the hazards into categories, follows: Hazards with risk ratings in the unshaded area can usually be considered as trivial. 7 Hazards with risk ratings in the shaded area below the lower double line can be considered as adequately controlled risk. Hazards with risk ratings above the upper double line must be considered as not adequately controlled - further controls will be required. Hazards with risk ratings in the darker shaded areas above the upper double line will require consideration of whether to suspend the activity until controls are introduced. The control measures provided for hazards with risk ratings between the two double lines must be examined against current standards and good practice to arrive at a decision as to whether the hazard is adequately controlled or not adequately controlled. SEVERITY OF INJURY AND ILL HEALTH DEFINITIONS Description Insignificant Minor Loss Time Injury Major Example Bruising, light abrasion, etc. ‘first aid’ Burns/scalds/cuts - up to 3 days off work More than 3 days off work – reportable under RIDDOR 1995 Serious injury/damage to health, permanent disability, loss of sight, amputation, etc. reportable under RIDDOR 1995 It is important to note that analysing the likelihood and severity of harm is not the ‘be-all and endall’ of risk assessment. The analysis is only a systematic way of ensuring that likelihood and severity are considered. Neither is the system illustrated above the only way of rating risk; it has been used purely as an example. It should be remembered that accidents and ill health cost money, whilst safety, properly managed, saves money. 8 Appendix 1 RISK ASSESSMENT FLOW CHART Obtain detailed knowledge of Working practices, plant and substances What is the potential for harm and what are the chances of exposure or injury taking place? Risks and hazards are high Risk and hazards are low There are significant risks and hazards which are inherent and unavoidable KNOW WHAT IS GOING ON AND WHERE DO ASSESSMENT CONSIDER SUBSTITUTE ACTIVITY MONITORING TO ENSURE THEY STAY LOW CONSIDER CURRENT PRACTICE ACCESS CONTROL PERSONAL PROTECTION INSTRUCTION TRAINING SUPERVISION DOES THE COMBINATION LEAD TO A REASONABLE DISCHARGING OF OUR DUTY OF CARE? NO Improve necessary components until it does OR cease activity YES Ensure regular monitoring 9 Appendix 2 SAMPLE RISK ASSESSMENT FORM Date: Assessed By: Faculty/Service: Signature: Activity/Process/Machines Hazard Building: Location: Room No: Persons in Danger 1 Circular Saw Noise, Dusts, Cuts, Eye Damage, etc. User 2 Portable Power Tool Electricity Work in rain/wet Trailing cable Vibration User User People in area User Electricity Tripping Office Staff Cleaners Visitors, etc. 3 Trailing Cable in Office Assessment No: Review Date: Severity 1-10 Likelihood 1-10 Risk Rate 2 4 8 8 10 80 2 8 16 Measures/Comments Task within PUWER Guidelines No maintenance No RCD Used in wet No PPE No measures taken to control risk Result A/T N N Key to result T = Trivial Risk A = Adequately Controlled N = Not Adequately Controlled U = Unable to decide (further information required). NB: THE SEVERITY X LIKELIHOOD RATINGS ARE CALCULATED AFTER TAKING INTO ACCOUNT EXISTING PRECAUTIONS. NNB: The examples above show that it is quite possible to have a high hazard (circular saw) with a potential for serious injury but the actual risk of injury itself is low because of the precautions taken. On the other hand it is possible to have a relatively low hazard (trailing cable in office) but the risk of injury is quite high because no precautions to prevent the tripping hazard have been taken. 10 Appendix 3 HAZARD CHECKLIST 1 Hazards Associated with plant and Equipment (including Non-Powered Plant and Hand Tools) Mechanical Hazards Electrical, Pressure, Stored Energy, Stability, Overloading Radiation, Noise, Vibration and Thermal Hazards 2 Hazards Associated with Materials and Substances Fire/Explosion Hazards Hazardous Substances 3 Hazards Associated with the Workplace 4 Hazards Associated with the Work Environment 5 Hazards Associated with Work Methods 6 Hazards Associated with Work Organisation 7 Other Types of Hazard 11 Appendix 3 Hazards Associated with Plant and Equipment (including Non-Powered Plant and Hand Tools) 1(a) Mechanical Hazards Trapping Hazards two moving parts or one moving part and a fixed surface conveyor belt and drive vee belt and pulley Impact Hazards Contact Hazards (includes puncture) (cutting, friction or abrasion) something that may strike or stab someone or can be struck against moving vehicle robot arm something sharp or with a rough surface blender blade circular saw blade sewing machine drill sanding belt hypodermic needle abrasive wheel hover mower scissors pendulum blade stapler crane hook using hammer power press mangle guillotine 1(b) drill chuck and bit power take off shaft pipe threading machine abrasive wheel Ejection Hazards (e.g. of workpiece or part of tool) cartridge tool thicknessing machine using hammer and chisel abrasive wheel Electrical, Pressure, Stored Energy, Stability, Overloading Electrical Hazards Pressure Hazards Electricity: compressed air compressed gas electricity above 240v electricity (240v) electricity (110v) knife, chisel, saw, etc. Entanglement Hazards (rotating parts) extra low volt electricity Ignition Sources: static batteries steam boiler vacuum hydraulic system Stored Energy Hazards Stability Hazards springs under tension inadequate crane base springs under compression forklift truck on slope hoist platform/ lift cage machine not bolted down conveyor tension weight mobile scaffold too high raised tipper lorry body scaffold not tied counterweight load carried by crane Overload/ Defective Due to Mechanical Failure crane overload chain sling eye bolt overload scaffold overload hopper overfill 12 Appendix 3 1(c) Radiation, Noise, Vibration and Thermal Hazards Noise Hazards Radiation Hazards Ionising Radiation: X Rays or radiation neutrons Vibration Hazards pneumatic drill pneumatic drill hot surface operation of plant operation of plant using blow lamp welding flame/arc refrigerant steam Non-ionising Radiation: microwave radio frequency laser ultraviolet infrared Thermal Hazards Hazards Associated with Materials and Substances 2 (a) Combustion Hazards Fire/Explosion Hazards Flammable Substances (including highly and extremely flammable - see also explosive below) Oxidising Substances Dust Explosion Hazards timber stack petrol organic peroxide coal dust coal store propane gas potassium permanganate wood dust paper store methane nitric acid aluminium powder grease explosive material flour magnesium methanol fireworks straw paraffin proprietary explosives plastic foam acetone detonators oxygen enrichment toluene some oxidising agents highly flammable gas carbon monoxide 13 Appendix 3 2(b) Hazardous Substances Corrosive/ Irritating Materials Dust Explosion Hazards Fumes Vapours sulphuric acid asbestos fibres lead fume caustic soda silica dust rubber fume man-made mineral fibre dust mite faeces asphalt fumes pigeon droppings dust grain dust wood dust Mists Asphyxiants oil mist nitrogen printing ink mist carbon dioxide water - legionella argon Gases acetone 1,1,1-trichloroethane dichloromethane benzene isocyanides Ingestion Hazards toxic harmful, corrosive and irritant liquids poisons, e.g. all harmful aerosols, polluted water, contaminated food and drink carbon monoxide hydrogen sulphide carbon disulphide sulphur dioxide Contact Hazards swarf rough timber concrete blocks molten metal frozen food 14 Appendix 3 3 Hazards Associated with the Workplace Access Work at Heights Stacking/ Storing Hazards Obstruction Work Over/Near Liquids, Dusts, Grain, etc. Trips/Slips: fragile roof low headroom high stacks grain silo damaged floors edge of roof sharp projections insecure stacks tank trailing cables inadequate racking reservoir edge of mezzanine floor oil spills sump work on ladder stacking at heights work over river erecting scaffold work near canal hole in floor water on floor debris wet grass sloping surface uneven steps changes in floor level Access: locked exits obstructed egresses long exit route 4 Hazards Associated with the Work Environment Light Temperature Confined Spaces Ventilation glare Indoor Work: work in tank fumes poor lighting work in furnace chimney odours stroboscopic effect cold room pit tobacco smoke arc welding Outdoor Work: basement molten metal hot weather unventilated room cold weather vessel wind chill factor silo work in rain, snow, etc 15 Appendix 3 5 Hazards Associated with Work Methods Manual Handling Repetitive Movements Posture lifting keyboard work seated work lowering using screwdriver work above head height carrying using hammer and chisel work at floor level pushing bricklaying pulling production line tasks hot/cold loads rough loads live loads, i.e. person or animal 6 Hazards Associated with Work Organisation Contractors Organisation of Work Work in Public Areas work above employees monotonous work trailing cables use of harmful substances stress traffic/plant movement contractors’ welding too much work obstruction to blind person process fumes lack of control of job obstruction to prams, etc services e.g. underground electricity cables work too demanding work above public stored hazardous materials 7 Other Types of Hazard Attack by Animals Attack by People Natural Hazards bees criminal attack lightning dog angry customer flash flood bull angry student fleas drunken person snake drug abuser mentally ill person 16 Risk Assessments (General) Policy and Guidance Health & Safety Unit 2012