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Site and Storage Conditions for Class 3.1 Flammable Liquids - PDF
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1 Site and Storage Conditions for Class 3.1 Flammable Liquids Introduction Contents Introduction... 1 SITE AND STORAGE CONDITIONS...2 Part 1 General Flammability Conditions...2 Part 2 Conditions Relating to the Unintended Ignition of Flammable Liquids not Located at Hazardous Substance Location...16 Part 3 Conditions Relating to the Unintended Ignition of Flammable Liquids Present at Hazardous Substance Location...22 Part 4 Calculation of Separation Distances...28 Part 5 Existing Type E Buildings Grand-Parenting...29 Part 6 Conditions for Stationary Container Systems...30 Part 7 Emergency Management...30 Part 8 Signage...38 INTERPRETATION...40 SOURCE REGULATIONS AND CONTROLS...49 This document sets out the site and storage conditions for class 3.1 flammable liquids. These substances may also have toxic, corrosive and/or ecotoxic properties (HSNO classes 6, 8 and/or 9), but no other hazardous properties. The conditions set out in this document are incorporated into a group standard by reference, and form part of that group standard. A substance must comply with the conditions in this document as part of the group standard approval. This document has been compiled from the following: Hazardous Substances (Classes 1 to 5 Controls) Regulations 2001; and Hazardous Substances (Emergency Management) Regulations 2001; and Hazardous Substances (Identification) Regulations 2001; and Hazardous Substances (Dangerous Goods and Scheduled Toxic Substances) Transfer Notice Further information on the source of each condition is given in the section Source Regulations and Controls. If any trigger quantity from any of the above regulations has been amended for a specific substance (e.g. petrol) by the Hazardous Substances (Dangerous Goods and Scheduled Toxic Substances) Transfer Notice 2004, or any other Transfer Notice, that amended trigger quantity is not given in this document. This document was published July 2006.
2 Site and Storage Conditions Part 1 General Flammability Conditions 1 Quantities (1) In determining whether the requirements for an approved handler, a hazardous substance location, a transit zone, or a test certificate are activated, the relevant quantity has been exceeded if the quantity-ratio sum is greater than 1 when determined in accordance with the following formula: where quantity-ratio sum = Σ [qp i /qa i ] Σ qp i qa i is the symbol for summation (in this case, summation of the calculated ratios for all flammable hazard classifications present for class 2, 3 and 4 substances) is the quantity of substance with a particular flammable hazard classification present is the quantity of substance of that flammable hazard classification that activates the relevant requirement (2) Where a quantity of gas is specified as cubic metres (m 3 ), this volume is determined by taking the contents and conditions of the gas held in a container and then calculating the volume that the gas would occupy at 15 C and kpa absolute pressure. Where the quantity of gas is specified in kilograms, this refers to the net weight of the gas in liquefied form as held in its container. (3) When considering quantities under subclauses (1) and (2) the quantities of all hazardous substances must be taken into account, howsoever those substances were approved under the Act. 2 Test certification (1) Where a test certificate is required for a hazardous substance location, that test certificate must be renewed at intervals of not more than 12 months, unless on request of the person or persons required to obtain the test certificate the Authority specifies a longer time limit for which the test certificate is valid. (2) The longer time limit specified by the Authority may not exceed 36 months. (3) When specifying the time limit, the Authority must take into account the maximum quantities and types of hazardous substances present or likely to be present at the relevant place; and the review and monitoring systems in place for the management of those substances; and Site and Storage Conditions for Class 3.1 Flammable Liquids 2
3 the compliance history of the organisation concerned and of the persons in charge of the substances. (4) Where there is a requirement to obtain more than one test certificate the test certifier may, on request of the person or persons required to obtain the test certificates, examine at the same time any or all of those matters that require test certification for which the certifier is competent to certify; and where more than one matter has been examined, the report provided by the certifier must indicate whether or not the respective requirements have been met and must give the reasons for any failure to meet those requirements; and a single test certificate may be issued for any or all of those matters where the requirements have been met. 3 General limits on flammable liquids Where a flammable liquid is present at a place in a quantity that exceeds that specified for the relevant substance in Table 1 for more than 18 hours, in the case of a 3.1B or 3.1C flammable liquid; or 2 hours, in the case of a 3.1A flammable liquid that flammable liquid must be held at a hazardous substance location or, if applicable, at a transit depot. Table 1. Quantities of flammable liquids that activate hazardous substance location and transit depot requirements HSNO classification Quantity beyond which conditions apply for closed containers Quantity beyond which conditions apply when use occurring in open containers 3.1A 20 L 20 L 3.1B 100 L in containers greater than 5 L 250 L in containers up to and including 5 L 3.1C 500 L in containers greater than 5 L 1,500 L in containers up to and including 5 L 50 L 50 L 250 L 250 L 4 Requirement to establish a hazardous atmosphere zone At any place containing a flammable liquid in quantities in excess of those specified in Table 2, the person in charge of the flammable liquid must ensure that a hazardous atmosphere zone is established that complies with AS/NZS ; or AS/NZS : 2004; or a code of practice approved by the Authority that specifies hazardous atmosphere zones equivalent to the requirements specified in subclauses and and takes into account the risk of the presence of flammable materials. Site and Storage Conditions for Class 3.1 Flammable Liquids 3
4 Table 2. Quantities of flammable liquids that activate hazardous atmosphere zone HSNO classification 3.1A, 3.1B and 3.1C Minimum quantity of flammable liquid 100 L (closed) 25 L (decanting) 5 L (open occasionally) 1 L (if in open container for continuous use) 5 Application of legislation to electrical systems located in hazardous atmosphere zones (1) Where any electrical installation or any electrical appliance within the scope of the Electricity Regulations 1997 is located within a hazardous atmosphere zone, the conditions imposed on that installation or appliance under the Act are the same as the controls that are included in those parts of the Electricity Act 1992, and regulations, codes, and standards made or recognised under that Act, that relate to hazardous areas. (2) Where any electrical system is located within an underground mine, the conditions imposed on that electrical system under the Act are the same as the controls that are included in those parts of the Health and Safety in Employment (Mining Underground) Regulations 1999 that relate to gassy mines. (3) Where electrical equipment is installed on a ship, vessel, or boat (other than a pleasure vessel containing connectible installations), the conditions imposed on that electrical equipment under the Act are the same as the controls that are included in those parts of the Maritime Rules made under the Maritime Transport Act 1994 that relate to hazardous areas. (4) Where electrical equipment is installed on any train, locomotive, tram, or trolley bus, the conditions imposed on that electrical equipment under the Act are the same as the controls that are included in those parts of the Transport Services Licensing Act 1989 or the Railways Act 2005 or rules made under the Land Transport Act 1998 that relate to hazardous areas. (5) Where any electrical equipment is installed on an aircraft that is under the jurisdiction of the Civil Aviation Rules, the conditions imposed on that electrical equipment under the Act are the same as the controls that are included in those parts of the Civil Aviation Rules that relate to hazardous areas. (6) Where any electrical equipment is used within a hazardous atmosphere zone around an aircraft but is not installed on the aircraft, the conditions imposed on that electrical equipment under the Act are the same as the controls that are included in those parts of the Electricity Act 1992, and regulations, codes, and standards made or recognised under that Act, that relate to hazardous areas. (7) For the purposes of subclause (1), the terms electrical installation, electrical appliance, and hazardous area have the meanings given to them in the Electricity Act (8) For the purposes of subclause (2), the terms electrical system and gassy mine have the meanings given to them in the Health and Safety in Employment (Mining Underground) Regulations Site and Storage Conditions for Class 3.1 Flammable Liquids 4
5 6 Requirements to reduce likelihood of unintended ignition of flammable liquids (1) Unless a flammable liquid is intentionally burned, in circumstances where any air or oxygen is present with such a flammable liquid the person in charge of the substance must (d) (e) (f) elect to manage the flammable liquid under the sets of conditions specified in any one of clauses 7, 9, 11, 13, and 15; and where clause 7 is elected, manage the flammable liquid under the provisions specified in subclause (2) or subclause (6) of that clause; and where clause 9 is elected, manage the flammable liquid under the provisions specified in either subclause (3) or subclause (4) of that clause; and where clause 11 is elected, manage the flammable liquid under the provisions specified in either subclause (3) or subclause (4) of that clause; and ensure that the requirements of the chosen clauses are complied with in full; and record which clause the flammable liquid is being managed under, and have that record available for inspection. (2) Despite the requirements of Part 3 (Approved Handler) of Schedule 1 to the Group Standard relating to a class 3.1 substance, any person handling a flammable liquid under any of clauses 9(4), 11, 13, and 15 must be an approved handler for that substance. 7 Circumstances involving control of ignition sources available to flammable liquids (1) Every person who elects to manage a flammable liquid under clause 6(1), by controlling ignition sources (but not the proportion of flammable vapour or gas to air), must ensure that in any place the flammable liquid is located the requirements of this clause are met. (2) Where a flammable liquid is within any hazardous atmosphere zone the temperature of the flammable liquid and the temperature of any surface in contact with the flammable liquid must not exceed 80% of the auto-ignition temperature in ºC for that flammable liquid; and any permanently fixed equipment or part of such equipment or containers must be effectively electrically bonded and earthed so that the maximum resistance to earth is 1 MΩ, for components that have an electrical resistance greater than or equal to 1 MΩ; and 10 Ω, for components that have an electrical resistance of between 10 Ω and 1 MΩ; and Site and Storage Conditions for Class 3.1 Flammable Liquids 5
6 the flammable liquid must be managed under one of the three sets of provisions set out in subclauses (3), (4), and (5) respectively. (3) SET OF PROVISIONS 1 There must be no ignition source present, unless it can be shown that any release of spark energy would transfer to the mixture of vapour or gas to air less than 10% of the minimum ignition energy of the flammable liquid in air. (4) SET OF PROVISIONS 2 there must be no ignition source present, unless it can be shown that any release of spark energy would transfer to the mixture of vapour or gas to air less than 25% of the minimum ignition energy of the flammable liquid in air; and persons managing flammable liquids in accordance with subclause (4) must operate in accordance with a code of practice approved under section 78 of the Act as meeting the requirements of that subclause for the purposes of this subclause. (5) SET OF PROVISIONS 3 In any situation except situations covered by clause 5, any ignition source located in a hazardous atmosphere zone must be protected in such a way that, in the circumstances in which it is installed (including the presence of dust and particulate matter), it cannot ignite any gas/air mixture or vapour/air mixture formed from the flammable liquids present. (6) At any place where the quantities of flammable liquids present are not sufficient to require the establishment of a hazardous atmosphere zone but where the concentration of vapour or gas may exceed 25% of the LEL; and flammable liquids are present in quantities greater than 10% of that required to trigger the hazardous atmosphere zone requirements then the following requirements apply: (d) there must be no ignition source present, unless it can be shown that any release of spark energy would transfer to the mixture of vapour or gas to air less than 10% of the minimum ignition energy of the flammable liquid in air; and the temperature of the flammable liquid, or the temperature of any surface in contact with the flammable liquid must not exceed 80% of the auto-ignition temperature for that flammable liquid. 8 Methods of complying with clause 7 (1) In the case of an electrical ignition source, compliance with one of, or where applicable a combination of, the explosion-protection techniques listed in Table 2.1 of AS : 1989 meets the requirements of clause 7(5). (2) The requirements of clause 7(2) are met if either Site and Storage Conditions for Class 3.1 Flammable Liquids 6
7 there is compliance with AS/NZS : 2005 relating to the matters described in clause 7(2); or any equipment and any surface in contact with the flammable liquid conform to the temperatures given in Table 3, and the temperature of the flammable liquid is kept below 40ºC. (3) Compliance with AS/NZS 1020: 1995 meets the requirement of clause 7(2) for the dissipation of static electricity from components that have an electrical resistance of between 10 Ω and 1 MΩ. Table 3. Maximum surface temperature of equipment that may contact flammable liquids of known auto-ignition temperatures Auto-ignition temperature More than 562.5ºC Required temperature of surfaces in contact with mixture of flammable vapour evolving from substances and air <450ºC ºC <300ºC ºC <200ºC ºC <135ºC ºC <100ºC Less than 125ºC <85ºC 9 Circumstances involving control of both proportion of vapour or gas to air and amount of energy available (1) Every person who elects to manage a flammable liquid under clause 6(1), by controlling both the proportion of flammable vapour or flammable gas to air, and the amount of energy available, must ensure that in any place the flammable liquid is located the requirements of this clause are met. (2) A flammable liquid must be managed under one of the two sets of provisions set out in subclauses (3) and (4) respectively. (3) SET OF PROVISIONS 1 The proportion of flammable vapour to air at all times must be below 25% of the LEL or above 4 times the UEL; and either there must be no ignition source present, unless it can be shown that any release of spark energy would transfer to the mixture of vapour to air less than 25% of the minimum ignition energy of the flammable liquid in air; or in any situation except situations covered by clause 5, any ignition source located in an area where flammable vapour is present at greater than 10% of the LEL must be protected in such a way that, in the circumstances in which it is installed (including the presence of dust and particulate matter), it cannot ignite any vapour/air mixture formed from the flammable liquids present. Site and Storage Conditions for Class 3.1 Flammable Liquids 7
8 (4) SET OF PROVISIONS 2 (d) the proportion of flammable vapour to air must at all times be below 50% of the LEL; and there must be a system in place to continuously monitor and control the concentration of vapour to meet the requirements of subclause (4); and persons managing flammable liquids according to this subclause must operate in accordance with a code of practice approved under section 78 of the Act as the requirements of this subclause; and either there must be no ignition source present, unless it can be shown that any release of spark energy would transfer to the mixture of vapour to air less than 50% of the minimum ignition energy of the flammable liquid in air; and there is a system in place to continuously monitor and control the amount of ignition energy present to meet the requirements of this subclause; or in any situation except situations covered by clause 5, any ignition source located in an area where flammable vapour is present at greater than 10% of the LEL must be protected in such a way that, in the circumstances in which it is installed (including the presence of dust and particulate matter), it cannot ignite any vapour/air mixture formed from the flammable liquids present. (5) The temperature of the flammable liquid and the temperature of any surface in contact with the flammable liquid must not exceed 80% of the auto-ignition temperature for that flammable liquid. (6) At any place where a flammable liquid is present in quantities greater than that specified in Table 2 (see clause 4), any permanently fixed equipment or container or part of any such equipment or container must be electrically bonded and earthed so that the maximum allowable resistance to earth is 1 MΩ, for dissipation of static electricity from components that have an electrical resistance greater than or equal to 1 MΩ; and 10 Ω, for the dissipation of static electricity from components that have an electrical resistance of less than 1 MΩ. 10 Methods of complying with clause 9 (1) In the case of an electrical ignition source, compliance with one of, or where applicable a combination of, the explosion-protection techniques listed in Table 2.1 of AS : 1989 meets the requirements of clause 9(3) and (4)(d). (2) The requirements of clause 9(5) are met if either there is compliance with AS/NZS : 2005 relating to the matters described in clause 9(5); or Site and Storage Conditions for Class 3.1 Flammable Liquids 8
9 any equipment and any surface in contact with the flammable liquid conform to the temperatures given in Table 3 (see clause 8), and the temperature of the flammable liquid is kept below 40ºC. (3) Compliance with AS/NZS 1020: 1995 is a means of meeting the requirements of clause 9(6) for the dissipation of static electricity from components that have an electrical resistance of between 10 Ω and 1 MΩ. 11 Circumstances involving control of proportion of vapour or gas to air, but not level of energy (1) Every person who elects to manage a flammable liquid under clause 6(1), by controlling the proportion of vapour or gas to air (but not the level of energy) must ensure that, in any place such a flammable liquid is located, the requirements of this clause are met. (2) A flammable liquid must be managed under one of the two sets of provisions set out in subclauses (3) and (4). (3) SET OF PROVISIONS 1 The proportion of vapour to air must at all times be kept below 10% of the LEL or above 10 times the UEL. (4) SET OF PROVISIONS 2 Where the proportion of vapour to air may be greater than 10% of the LEL or less than 10 times the UEL the proportion of vapour to air must at all times be kept either below 50% of the LEL or above 2 times the UEL; and there must be a system in place to continuously monitor and control the concentration of vapour to meet the requirements of subclause (4); and persons managing flammable liquids according to this subclause must operate in accordance with a code of practice approved under section 78 of the Act as meeting the requirements of this subclause. 12 Methods of complying with clause 11 Compliance with sections 5-2 and 5-4 of NFPA 86, Standard for Ovens and Furnaces, 1999, National Fire Protection Association, USA, relating to the matters described in clause 11(4), is a means of meeting the requirements of clause 11(4). 13 Circumstances where flammable vapour or gas present in atmosphere where proportion of oxygen in atmosphere (by volume) greater than 20.9% (1) Every person who elects to manage the flammable vapour of a flammable liquid under clause 6(1), within an atmosphere where the proportion of oxygen is greater than 20.9% volume for volume, must ensure that, in any place where such a flammable liquid is located, the requirements of this clause are met. Site and Storage Conditions for Class 3.1 Flammable Liquids 9
10 (2) A RLEL (O) and a RUEL (O) applicable to the proportion of flammable vapour to oxygen present must be established by the person in charge of the substance, and the RLEL (O) and the RUEL (O) must be available for inspection at any time; and at all times the proportion of vapour of the liquid to oxygen in the atmosphere must be either below 25% of the RLEL (O) or above 4 times the RUEL (O) ; and to meet the requirements of subclause (2), there must be a system in place to continuously monitor and control the proportion of oxygen present; and the proportion of vapour to oxygen present. (3) In a place where the flammable liquid is present in concentrations greater than 10% RLEL (O), the requirements of either of the following subclauses must be met: the person in charge must establish a revised minimum ignition energy for the maximum proportion of oxygen to air expected within the system, and where such a revised minimum ignition energy is established, it must be available for inspection at any time; and there must be no item capable of generating a flame or spark present unless it can be shown that any release of spark energy would transfer to the mixture of vapour to oxygen-enriched air less than 25% of the revised minimum ignition energy; or in any situation except situations covered by clause 5, any ignition source located within the area where flammable vapour is present must be protected in such a way that, in the circumstances in which it is installed (including the presence of dust and particulate matter), it cannot ignite any vapour/air mixture formed from the flammable liquids present. (4) A revised auto-ignition temperature must be established for the maximum proportion of oxygen to air expected to be experienced within the system, and the revised auto-ignition temperature must be available for inspection at any time; and at all times the temperature of the flammable liquid and of any surface in contact with the flammable liquid must be below 80% of the revised auto-ignition temperature for that flammable liquid and oxygen level; and there must be a system in place to continuously monitor and control the temperature of the flammable liquid and of any surface in contact with the flammable liquid to meet the requirements of subclause (4). (5) At any place where a flammable liquid is present in quantities greater than that specified in Table 2 (see clause 4), any permanently fixed equipment or container at the place, or part of such equipment or container, must be electrically bonded and earthed so that the maximum allowable resistance to earth is Site and Storage Conditions for Class 3.1 Flammable Liquids 10
11 1 MΩ, for gradual dissipation of static electricity from components that have an electrical resistance greater than or equal to 1 MΩ; and 10 Ω, for the dissipation of static electricity from components that have an electrical resistance of less than 1 MΩ. (6) The flammable liquid must be managed in accordance with a code of practice approved under section 78 of the Act as a method for meeting the requirements specified in subclauses (3) to (5). 14 Methods of complying with clause 13 Compliance with AS/NZS 1020: 1995 is a means of meeting the requirements of clause 13(5). 15 Circumstances where flammable vapour may be present and proportion of oxygen in atmosphere (by volume) controlled so as to be below 20.9% (1) Every person who elects to manage a flammable vapour of a liquid under clause 6(1), within an atmosphere where the proportion of oxygen present is controlled so as to be below 20.9% (by volume), must ensure that in any place where such a flammable liquid is located the requirements of this clause are met. (2) In the place, the person in charge of the flammable liquid must ensure that either at all times the proportion of flammable vapour of the liquid to air, is either below 25% of the LEL or above 4 times the UEL; or an RLEL (O) and RUEL (O) is established applicable to the range of proportions of flammable vapour of the liquid to oxygen present, in which case that RLEL (O) and RUEL (O) must be available for inspection at any time; and at all times the proportion of vapour to oxygen in the atmosphere must be either below 25% of the RLEL (O), or above 4 times the RUEL (O) ; and (iii) there must be a system in place to continuously monitor and control both the proportion of oxygen to air present, and the proportion of vapour to oxygen present, to meet the requirements of subclause (2). (3) In the place, the person in charge of the flammable liquid must ensure that there is no ignition source present unless it can be shown that any release of spark energy would transfer to the mixture of vapour to air less than 25% of the minimum ignition energy; or in any situation except situations covered by clause 5, any ignition source located in the area where flammable vapour is present is protected in such a way that, in the circumstances in which it is installed (including presence of dust and particulate matter), it cannot ignite any vapour/air mixture formed from the flammable liquids present. Site and Storage Conditions for Class 3.1 Flammable Liquids 11
12 (4) In the place, the person in charge of the flammable liquid must ensure that either the temperature of the flammable liquid and of any surface in contact with the flammable liquid does not exceed 80% of the auto-ignition temperature for that flammable liquid; or a revised auto-ignition temperature is established for the range of proportions of oxygen expected to be present, in which case the revised temperature must be available for inspection at any time; and at all times the temperature of the flammable liquid and of any surface in contact with the flammable liquid must be below 80% of the revised autoignition temperature; and (iii) there must be a system in place to continuously monitor and control the proportion of oxygen to air present, and the temperature of the flammable liquid and the temperature of any surface in contact with the flammable liquid, to meet the requirements of subclause (4). (5) At any place where a flammable liquid is present in quantities greater than that specified in Table 2 (see clause 4), any permanently fixed equipment or container at the place, or part of any such equipment or container, must be electrically bonded and earthed, so that the maximum allowable resistance to earth is 1 MΩ, for dissipation of static electricity from components that have an electrical resistance greater than or equal to 1 MΩ; and 10 Ω, for the dissipation of static electricity from components that have an electrical resistance of less than 1 MΩ. 16 Methods of complying with clause 15 (1) In the case of an electrical ignition source, compliance with any one of the explosionprotection techniques, or a combination of explosion-protection techniques, listed in Table 2.1 of AS : 1989 relating to matters described in clause 15(3) are a means of meeting the requirements of clause 15(3). (2) The requirements of clause 15(4) are met if either there is compliance with AS/NZS : 2005 relating to the matters described in clause 15(4); or any equipment and any surface in contact with the flammable liquid conform to the temperatures given in Table 3 of clause 8, and the temperature of the flammable liquid is kept below 40ºC. (3) Compliance with AS/NZS 1020: 1995 is a means of meeting the requirements of clause 15(5). 17 Segregation requirements for incompatible substances (1) Except where the ignition of a flammable liquid is intended, the person in charge of a flammable liquid must ensure that Site and Storage Conditions for Class 3.1 Flammable Liquids 12
13 the flammable liquid is not in contact with any substance or material with which it is incompatible; and packages of incompatible substances are held separately. (2) For the purpose of this clause, substances or materials specified in Table 4 are incompatible with flammable liquids. Table 4. Substances and materials incompatible with flammable liquids Incompatible substances and materials Class 1 substances Class 2 substances Class 3.2 substances Class 4 substances Class 5 substances (3) This clause does not apply to substances that are located on a vehicle, ship, or aircraft; and segregated in accordance with the Land Transport Rules, the Maritime Rules, or the Civil Aviation Rules, as the case may be. 18 Requirement to establish hazardous substance location (1) The person in charge of a place where any 3.1A, 3.1B or 3.1C flammable liquid is located must establish in that place one or more hazardous substance locations where such flammable liquids are to be situated if the flammable liquid is present in a quantity exceeding that specified for in it Table 1 (see clause 3); and for a period exceeding 18 hours, in the case of a 3.1B or 3.1C flammable liquid; or 2 hours, in the case of a 3.1A flammable liquid. (2) The person in charge of the hazardous substance location must notify an enforcement officer responsible for the enforcement of the Act in the area where the hazardous substance location is located, at least 30 working days before the commissioning of the hazardous substance location as a place for accommodating flammable liquids, of the street address of the place in which the hazardous substance location is located; and the maximum quantity and hazard classification of each flammable liquid that the hazardous substance location is designed or constructed to accommodate. (3) The person in charge of the hazardous substance location must ensure that, where a Group Standard requires a flammable liquid to be under the control of an approved handler, the approved handler requirements of Part 3 (Approved Handler) of Schedule 1 of that Group Standard relating to a class 3.1 substance are met. Site and Storage Conditions for Class 3.1 Flammable Liquids 13
14 (4) The person in charge of the hazardous substance location must ensure that where a test certificate is required under clause 19, a test certificate is obtained that certifies that the requirements of clause 19 are met; and a site plan is available for inspection that shows the physical position, in relation to the legal boundary of the site in which the hazardous substance location or hazardous substance locations are located, of all hazardous substance locations within the place that contain flammable liquids; and all hazardous atmosphere zones and controlled zones within the place; and where required under clause 4, a hazardous atmosphere zone is established and maintained in accordance with that clause. 19 Test certification requirements where a flammable liquid is present at a hazardous substance location or in a hazardous atmosphere zone The person in charge of a hazardous substance location where flammable liquids are present must ensure that the location or place has a current test certificate certifying that the notification requirements of clause 18 are complied with; and where Part 3 (Approved Handler) of Schedule 1 to the Group Standard relating to class 3.1 substances, or clause 6(2), require flammable liquids to be under the control of an approved handler the person in charge of the hazardous substance location is an approved handler for such flammable liquids, or can demonstrate that a person is available who is an approved handler for such substances; and the flammable liquids can be secured so that a person cannot gain access to the flammable liquids without tools, keys, or any other device used for operating locks; and (d) (e) (f) (g) (h) if a hazardous atmosphere zone is required by clause 4, a hazardous atmosphere zone has been established in accordance with that clause, and the extent of the hazardous atmosphere zone is documented; and the requirements of clause 17 are complied with; and the hazardous substance location has signage in place as required by Part 8 of the Site and Storage Conditions; and where the quantity of flammable liquid requires it, Part 7 of the Site and Storage Conditions is complied with; and the requirements of clause 18(4) are complied with; and the requirements of Parts 2 to 5 of the Site and Storage Conditions are complied with. Site and Storage Conditions for Class 3.1 Flammable Liquids 14
15 20 Requirements to be met by transit depot (1) At any transit depot where the quantity of flammable liquids exceeds that specified for the relevant 3.1A, 3.1B or 3.1C liquids in Table 1 (see clause 3), the person in charge of the transit depot must at least 30 working days before the commissioning of the transit depot as a place for accommodating these flammable liquids, notify an enforcement officer responsible for enforcement of the Act in the area where the transit depot is situated of the street address of the transit depot; and the maximum quantity and the hazard classification of each of the substances that the depot is designed to accommodate; and ensure that the approved handler requirements of Part 3 (Approved Handler) of Schedule 1 to the Group Standard relating to a class 3.1 substance are met; and ensure that any road vehicle loaded with containers of these flammable liquids is not less than 3 m from any other vehicle that is loaded with compatible substances; and not less than 5 m from any other vehicle that is loaded with incompatible substances; and (iii) not less than 3 m from any place where containers of compatible substances not on a vehicle are located; and (iv) not less than 5 m from any place where containers of incompatible substances not on a vehicle are located; and (d) (e) (f) (g) ensure that any containers of these substances held in the transit depot but not loaded onto a vehicle are not less than 5 m from containers of incompatible substances; and ensure that all substances located at the transit depot remain within their containers, and that the containers remain closed; and ensure that any electrical equipment at the transit depot is designed and constructed so that in the event of failure of the electrical equipment no resulting ignition source will contact either the substance or its package; and designate and clearly identify with signs that meet the requirements of Part 8 of the Site and Storage Conditions, areas for containment, pending disposal, of any leaked or spilled material or damaged packages. (2) Compliance with those parts of the Electricity Act 1992 and regulations made under that Act, the Health and Safety of Employment (Mining Underground) Regulations 1999, or the Civil Aviation Rules that relate to the matter described in subclause (1)(f) are a means of meeting the requirements of subclause (1)(f). Site and Storage Conditions for Class 3.1 Flammable Liquids 15
16 Part 2 Conditions Relating to the Unintended Ignition of Flammable Liquids not Located at Hazardous Substance Location 21 Person in charge of flammable liquid must comply with this Part (1) The person in charge of a flammable liquid must ensure that the adverse effects of unintended ignition of the flammable liquid are controlled in accordance with this Part. (2) Subclause (1) does not apply if a provision of these conditions states that a different person is responsible. 22 Separation of above ground stationary tank, transportable container or tank wagon containing a flammable liquid from areas of high and low intensity land use (1) This clause does not apply to a domestic oil-burning installation that includes a stationary tank that has a capacity that does not exceed 1,200 L; and complies with clause 64 of Schedule 8 of the Hazardous Substances (Dangerous Goods and Scheduled Toxic Substances) Transfer Notice 2004; or a stationary tank that complies with clause 62(3) of Schedule 8 of that notice. (2) An above ground stationary tank or transportable container that complies with Chapter 6.7 of the UN Model Regulations, or a tank wagon, that contains a flammable liquid that is present in a location that is not a hazardous substance location, must be separated from an area of high intensity land use by not less than the distance specified in whichever of column 2 (for 3.1A, 3.1B or 3.1C liquids) or column 3 (for 3.1D liquids) of Table 5 as shown opposite the capacity of the above ground stationary tank, or transportable container that complies with Chapter 6.7 of the UN Model Regulations or tank wagon, in column 1 of that table; or an area of low intensity land use by not less than the distance specified in column 4 of Table 5 as shown opposite the capacity of the above ground stationary tank, or transportable container that complies with Chapter 6.7 of the UN Model Regulations or tank wagon, in column 1 of that table. (3) Where an above ground stationary tank, a transportable container or a tank wagon, having multiple compartments is installed, the separation distance to areas of high intensity land use and low intensity land use will be based on the aggregate volume of the compartments and the lowest flash point substance stored in any of the compartments. Site and Storage Conditions for Class 3.1 Flammable Liquids 16
17 Table 5. Calculation of distances Capacity (L) Area of high intensity land use (m) Area of low intensity land use (m) Column 1 Column 2 Column 3 Column 4 3.1A, 3.1B, 3.1C 3.1D 3.1A, 3.1B, 3.1C Up to , , , , , , , , ,000, ,000, ,000, ,000, ,000,000 and over Requirement to hold certain packages or transportable containers of a flammable liquid in a building of a certain type (1) A 3.1A, 3.1B or 3.1C flammable liquid, that is present at a location that is not a hazardous substance location, that is contained in one or more packages or transportable containers that comply with Chapter 6.5 of the UN Model Regulations, other than a package or container to which clause 28 applies, must be held in a building of a type specified in subclause (2). (2) The types are (d) a type A building; or a type B building; or a type C building; or a type D building. (3) Despite subclause (1), a flammable liquid that is contained in one or more packages may be held in a storage cabinet that is constructed and installed in accordance with section 4.9 of AS ; and if each package does not contain more than 20 L of the flammable liquid; and the aggregate quantity of all packages of flammable liquid does not exceed 250 L. Site and Storage Conditions for Class 3.1 Flammable Liquids 17
18 24 Separation of building holding packages up to 60 L of 3.1A or 3.1B flammable liquid or packages of any amount of 3.1C flammable liquid from area of high intensity land use (1) This clause applies to every type A, type B, type C or type D building that holds, at a location that is not a hazardous substance location, one or more packages that contains, or each contain, as the case may be up to 60 L of a 3.1A or 3.1B flammable liquid; or a 3.1C flammable liquid. (2) A building to which this clause applies must be separated from an area of high intensity land use by not less than the distance specified in column 4 of Table 6 opposite the aggregate quantity of all packages of flammable liquids specified in whichever of column 1, or column 2, or column 3 of that table relates to the building. Table 6. Calculation of distances Aggregate quantity of 3.1A, 3.1B or 3.1C flammable liquids (L) Area of high intensity land use (m) Column 1 Column 2 Column 3 Column 4 Type A or B building Type C building Type D building 250 1,000 20, , ,000 50, , , , ,000 or more 6 10, , , ,000 or more 15 40, ,000 or more Storage of packages holding 3.1 flammable liquids in a store in a building (1) Class 3.1 flammable liquids may be situated in a store inside a building provided that they are stored in a room with the walls and ceiling constructed with a 60/60/60 fire resistance rating and not more than 450 L is situated in the store; and the flammable liquids are stored in containers, each not exceeding 20 L capacity; or in a room with the walls and ceiling constructed of reinforced concrete or equivalent with a 120/120/120 fire resistance rating and not more than 2,000 L is situated in the store; and Site and Storage Conditions for Class 3.1 Flammable Liquids 18
19 the flammable liquids are stored in containers, each not exceeding 60 L capacity, provided that one container of a maximum capacity of 250 L may be located in the store; or in a type D building which shall have no openings to the interior of the building except for a door that is self-closing in the event of a fire and which opens into a type 1, 2, or 3 building. (2) For the purposes of subclause (1), where the quantity of flammable liquids in the store does not exceed 2,000 L, the door may open into the building if (d) (e) the door of the room has a fire resistance rating of -/60/60 in the case of storage in accordance with subclause (1) and -/120/120 in the case of storage in accordance with subclause (1); and the door is fitted to be self-closing in the event of a fire near the doorway; and there are no combustible materials within 3 m of the doorway; and any portion of any structure within 3 m of the doorway must be constructed of non-combustible materials, and the door is kept closed except when goods are being placed in, or removed from, the store. (3) A building constructed in accordance with subclause (1) or a building which has more than two walls in common with another building that is an area of regular habitation shall have walls constructed of reinforced concrete or equivalent with a fire resistance rating of 240/240/240 and shall not contain more than 5,000 L of 3.1A and 3.1B flammable liquids in aggregate, in containers exceeding 60 L capacity; or 10,000 L in aggregate in the case of all other storage of 3.1A and 3.1B flammable liquids in containers not exceeding 60 L capacity and/or 3.1 C flammable liquids in containers not exceeding 250 L capacity. 26 Separation of building holding transportable containers or packages of more than 60 L of 3.1A, 3.1B or 3.1C flammable liquid from area of high intensity land use (1) This clause applies to every type A, type B, type C or type D building that holds one or more packages or transportable containers that comply with Chapter 6.5 of the UN Model Regulations that contains, or each contain, as the case may be, more than 60 L of a 3.1A, 3.1B or 3.1C flammable liquid, that is present in a location that is not a hazardous substance location. (2) A building to which this clause applies must be separated from an area of high intensity land use by not less than the distance specified in column 4 of Table 7 opposite the aggregate quantity of all transportable containers that comply with Chapter 6.5 of the UN Model Regulations or packages of flammable liquids specified in whichever of column 1, or column 2, or column 3 of that table relates to the building. Site and Storage Conditions for Class 3.1 Flammable Liquids 19
20 Table 7. Calculation of distances Aggregate quantity of 3.1A, 3.1B or 3.1C flammable liquid (L) Area of high intensity land use (m) Column 1 Column 2 Column 3 Column 4 Type A or B building Type C building Type D building 10, , , , , , , ,000 or more 10 10,000 25, , ,000 60, ,000 or more 25 40, ,000 or more Separation of transfer point for a flammable liquid from area of high intensity land use A transfer point used to fill a tank wagon with a flammable liquid, that is not a hazardous substance location, must be separated from an area of high intensity land use by the distance of 10 m in the case of a 3.1A, 3.1B or 3.1C flammable liquid, or 5 m in the case of a 3.1D flammable liquid. 28 A flammable liquid being used or in open package or container to be held in building of a certain type (1) This clause applies when a 3.1A, 3.1B or 3.1C flammable liquid that is present in a location that is not a hazardous substance location, is being used; or contained in one or more packages or containers, one or more of which is open. (2) A 3.1A, 3.1B or 3.1C flammable liquid to which this clause applies and which is located in a building must be held in a type 1 building; or a type 2 building; or a type 3 building; or (d) a paint mixing room that complies with AS/NZS Site and Storage Conditions for Class 3.1 Flammable Liquids 20
21 29 Separation of building holding package containing a 3.1A, 3.1B or 3.1C flammable liquid from area of high intensity land use (1) This clause applies to every type of building specified in clauses 28(2) to (d) in which a flammable liquid, that is present in a location that is not a hazardous substance location, is being used; or contained in one or more packages or containers, one or more of which is open. (2) A building to which this clause applies if the building is a type 1 building or paint mixing room that complies with AS/NZS 4114, must not hold a class 3.1 flammable liquid in a container that is more than 20 L in capacity; and an aggregate quantity of class 3.1 flammable liquids of more than 450 L; and if the building is a type 2 or type 3 building, must not hold more than in the case of a 3.1A or 3.1B flammable liquid, an aggregate quantity of 7,500 L; or in the case of a 3.1C flammable liquid, 10,000 L; and must be constructed so as to hold any 3.1A or 3.1B flammable liquid that exceeds 60 L, or a 3.1C flammable liquid that exceeds 100 L, as close as practicable to ground level. (3) For the purposes of subclause (2), where the building holds both 3.1A and/or 3.1B flammable liquids, and also 3.1C flammable liquids, the relevant quantity has been exceeded if the quantity-ratio is greater than 1. (4) Every building to which this clause applies must be separated from an area of high intensity land use by not less than in the case of a 3.1A or 3.1B flammable liquid, the distance specified in whichever of column 2 or column 3 of Table 8 relates to that type of building opposite the aggregate quantity of the flammable liquid specified in column 1 of that table; or in the case of a 3.1C flammable liquid, the distance specified in whichever of column 2 or column 3 of Table 8 relates to that type of building opposite the aggregate quantity of the flammable liquid specified in column 1 of that table. Site and Storage Conditions for Class 3.1 Flammable Liquids 21
22 Table 8. Calculation of distances Area of high intensity land use (m) Column 1 Column 2 Column 3 Aggregate quantity of 3.1A and 3.1B flammable liquid (L) Type 2 building Type 3 building Up to 1, , , Aggregate quantity of 3.1C flammable liquid (L) Up to 2, , , Repairs and servicing of tank wagons Notwithstanding the requirements of clause 22, a tank wagon may be taken into a building for repairs, vehicle inspection or servicing provided that the tank wagon load tank cannot vent inside the building, that the tank wagon is not located where it can be subject to heating, that no ignition source is permitted within 8 m of the load tank and, in the case of emergency repairs, that the driver or other responsible representative of the owner remains with the vehicle until the repair is completed. Part 3 Conditions Relating to the Unintended Ignition of Flammable Liquids Present at Hazardous Substance Location 31 Person in charge of flammable liquid must comply with this Part (1) The person in charge of a flammable liquid must ensure that the adverse effects of unintended ignition of the flammable liquid are controlled in accordance with this Part. (2) Subclause (1) does not apply if a provision of these conditions states that a different person is responsible. 32 Requirement to establish controlled zone (1) The person in charge of a hazardous substance location at which a 3.1A, 3.1B or 3.1C flammable liquid is present must establish a controlled zone around the hazardous substance location that complies with this Part; and exclude all non-authorised personnel from that controlled zone. (2) Subclause (1) does not apply if the controlled zone includes one or more areas for the retail sale of a flammable liquid referred to in subclause (1) to which the public have access; and Site and Storage Conditions for Class 3.1 Flammable Liquids 22
23 warning signs are provided that are visible to persons in the controlled zone that specify that no ignition source may be brought within that controlled zone. 33 Separation of above ground stationary tank, transportable container or tank wagon containing a 3.1A, 3.1B or 3.1C flammable liquid from boundary of controlled zone (1) This clause does not apply to a domestic oil-burning installation that includes a stationary tank that has a capacity that does not exceed 1,200 L; and complies with clause 64 of Schedule 8 of the Hazardous Substances (Dangerous Goods and Scheduled Toxic Substances) Transfer Notice 2004; or a stationary tank that complies with clause 62(3) of Schedule 8 of that notice. (2) An above ground stationary tank or transportable container that complies with Chapter 6.7 of the UN Model Regulations or tank wagon that contains a 3.1A, 3.1B or 3.1C flammable liquid, that is present at a hazardous substance location, must be separated from the boundary of the controlled zone if the controlled zone abuts an area of high intensity land use, by not less than the distance specified in whichever of column 2 (for 3.1A, 3.1B or 3.1C) or column 3 (for 3.1D) of Table 5 (see clause 22) is opposite the capacity of the above ground stationary tank or transportable container that complies with Chapter 6.7 of the UN Model Regulations or tank wagon in column 1 of that table; or if the controlled zone abuts an area of low intensity land use, by not less than the distance specified in column 4 of Table 5 (see clause 22) opposite the capacity of the above ground stationary tank or transportable container that complies with Chapter 6.7 of the UN Model Regulations or tank wagon in column 1 of that table. (3) Where an above ground stationary tank, transportable container or tank wagon, having multiple compartments is installed, the separation distance to areas of high intensity land use and low intensity land use will be based on the aggregate volume of the compartments and the lowest flash point substance stored in any of the compartments. 34 Requirement to hold certain packages or transportable containers of flammable liquids in building of a certain type (1) A flammable liquid, that is present at a hazardous substance location, that is contained in one or more packages or transportable containers that comply with Chapter 6.5 of the UN Model Regulations, other than a package or container to which clause 40 applies, must be held in a building of a type specified in subclause (2). (2) The types are a type A building; or a type B building; or Site and Storage Conditions for Class 3.1 Flammable Liquids 23
Secondary Containment Systems HSNOCOP 47 April 2012 APPROVED CODE OF PRACTICE UNDER THE HAZARDOUS SUBSTANCES AND NEW ORGANISMS (HSNO) ACT 1996 2 Month YEAR EPA0097 3 Preface This Code of Practice HSNOCOP
HSNO Control Regulations FEBRUARY 2012 (AS ORIGINALLY WRITTEN NOVEMBER 2001)
HSNO Control Regulations FEBRUARY 2012 (AS ORIGINALLY WRITTEN NOVEMBER 2001) USER GUIDE 2 Record of Amendments Amdt No. Section Date Actioned By Signature 3 Foreword The Hazardous Substances and New Organisms