AS 2865 – 2009 CONFINED SPACES 1 OBJECT OF TODAY’S PRESENTATION Major amendments to AS 28652865-2009 Some practical guidance on applying the Standard 2 MAJOR AMENDMENTS TO AS 2865 – 2009 The Standard no longer applies to excavation and trenching. The definition Th d fi iti off a confined fi d space no longer l recognises the following as criteria for defining a confined space: • Atmospheric pressure during entry • A place of work (replaced with human occupancy) • Restricted means for entry and exit 3 MAJOR AMENDMENTS TO AS 2865 – 2009 The definition expanded to cover: • • air borne contaminants that may cause i impairment, i t loss l off consciousness i or asphyxiation h i ti engulfment in free flowing solids or a rising level of liquid Figure 1 & Table 1 introduced to give guidance in identifying a confined space. The concept of task task-related related hazards introduced introduced. 4 MAJOR AMENDMENTS TO AS 2865 – 2009 Clarification of what constitutes reclassifying a confined space. An option A ti that th t if a standby t db person is i nott assigned i d then systems of work methods and controls are implemented that provide an equal or better safety outcome to that provided by a standby person. Appendix D - Guidance for the provision of training and competency assessment. 5 Definition of a confined space p An enclosed or partially enclosed space that is not intended or designed g primarily p y for human occupancy, p y within which there is a risk of one or more of the following: (a) an oxygen concentration outside the safe oxygen range. (b) a concentration t ti off airborne ib contaminant t i t th thatt may cause impairment, loss of consciousness or asphyxiation. asphyxiation (c) a concentration of flammable airborne contaminant that may cause injury from fire or explosion. (d) engulfment in a stored free-flowing solid or a rising level of liquid q that mayy cause suffocation or drowning. 6 AS 2865 – 2009 does NOT apply to: underground mining tunnelling abrasive blasting spray painting trenching excavation work 7 ATMOSPHERIC PRESSURE DURING ENTRY Many confined spaces are not at atmospheric pressure when in service p Establishing atmospheric pressure for entry is a control measure 8 A PLACE OF WORK All State OH&S statutes contain a definition of a place of work Working in a confined space can literally make the space a “place of work” 9 RESTRICTED MEANS OF ENTRY & EXIT Some confined spaces have unrestricted entries / exits other have not and/or The term “restricted” is a subjective judgement A restricted means of entry & exit may make it difficult to access and egress and increase emergency response times 10 ENGULFMENT (AS 2865-2009 definition) The immersion or envelopment of a person by a solid or liquid, (which may include grain, sugar, flour, sand, coal, fertilizer and other substances in a powder or granular form). form) 11 FIGURE 1 - IDENTIFYING A CONFINED SPACE Yes Is space enclosed or partially enclosed? Yes Is space not intended or designed primarily for other than continuous human occupancy? Has space an oxygen concentration outside the safe oxygen range? Yes No No No Has space an airborne contaminants that may cause impairment, loss of consciousness or asphyxiation? NOT A CONFINED SPACE Yes No Has space an airborne contaminants that may cause injury f from fire fi or explosion? Yes No CONFINED SPACE No Has space a stored free flowing solid or a rising level of liquid that may cause suffocation or drowning by engulfment? Yes TABLE 1 SAMPLE CONFINED SPACE HAZARD IDENTIFICATION MATRIX Physical Characteristic Step A Step B Description of space Step C Could the Is space intended atmosphere have Is space enclosed or designed oxygen or partially primarily for concentration enclosed space? other than human outside the safe occupancy? oxygen range? Requires A and B Identified Hazards Step D Step E Step F Could the Could the Could the space atmosphere have a atmosphere have a have a stored free Is the enclosed concentration of concentration of or partially flowing solid or a airborne flammable rising level of enclosed space contaminant that airborne liquid that may a potential t ti l may cause contaminant that cause suffocation confined space? impairment, loss may cause injury or drowning? of consciousness from fire or Required to have either C, D, E, or F S Sewerage piti NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO Workshop welding bay Boiler ..\Confined Spaces\2865 Review\Flow Diagrams & ID Matrix\2009 CS Test Matrix.xls - Sheet1!B1 13 TASK-RELATED HAZARD (AS 2865-2009 definition) In respect to a confined space means exposure to a hazard as a consequence of the task being conducted on or in a confined space. Confined space task-related hazards are identified & assessed the same as any other workplace activity. 14 CONFINED SPACE HAZARD IDENTIFICATION, RISK ASSESSMENT AND CONTROL FLOW DIAGRAM for AS 2865‐2009 Is space enclosed or partially enclosed? Yes Is space intended or designed primarily for other than human May have oxygen concentration outside the safe oxygen range? Yes occupancy? No Yes No No NOT A CONFINED SPACE Tasks required to be q conducted in space Identify task related hazards Assess task related risks & implement control measures Yes May have atmospheric y p contaminants which may cause impairment, loss of consciousness or asphyxiation? No May have atmospheric contaminants which may cause injury from fire or from fire or explosion? Implement measures to control risks from atmospheric & engulfment p g hazards Yes No Entry required to confined to confined space No No May cause engulfment g ? Yes CONDUCT TASKS CONFINED SPACE Yes Does level of risk meet definition criteria? 15 Confined Space entry monitoring Risk control measures shall require— require provision of a standby person or persons; or systems of work methods and controls that provide an equal or better safety outcome to that provided by a standby person. 16 RECLASSIFICATION OF A CONFINED SPACE For a confined space to be reclassified to a non confined space it needs to have undergone sufficient changes in structure or usage to eliminate (without the need for risk control measures) all possible sources of inherent hazards that define a confined space. space 17 18 19 20 TABLE D1 RECOMMENDED CORE TRAINING ELEMENTS AND PERFORMANCE CRITERIA Broad roles (Refer to Paragraph D2) Core training element Performance criteria 1.Demonstrate an understanding of legislation, standards & codes d off practice relevant to confined spaces. 1.1 Identify legislation, standards and codes of practice relevant to designers, manufacturers, installers, modifiers and users of confined spaces. a, b, c, d, e, f 1.2 Describe the responsibilities and obligations relevant to designers, manufacturers, installers, modifiers and users of confined spaces. a, b, c, d, e, f 21 Q Questions ti ? 22