AS NZS 1596 1997 amdt 1 1999 storage and handling of liquefi

Title AS/NZS 1596-1997/Amdt 1-1999 Storage and handling of Liquefied Petroleum Gas Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International Your licence is a single user licence and the document may not be stored, transferred or otherwise distributed on a network You may also make one paper copy of this document if required Web Check-up AS / NZS 1596/Amdt 1/1999-04-05 STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND Amendment No to AS / NZS 1596:1997 Storage and handling of LP Gas REVISED TEXT The 1997 edition of AS / NZS 1596 is amended as follows; the amendment(s) should be inserted in the appropriate place Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited SUMMARY : This Amendment applies to the Preface, Clauses 1.1.1, 1.5.23, 1.5.45, 1.5.2, Table 3.2, Clauses 3.5.7, 3.6.1, 4.2.4, 4.2.6, 4.7.2, 4.7.7, 4.9.8, 4.11.1, 4.11.3, Table 5.1, Clauses 5.4.3, 5.4.4., 6.4.2, Figure 6.1, Clauses 6.4.7, 7.2.2, 9.1, 9.5.1, 9.7.3.3, 10.5.5, 10.7, 10.11.3, 10.12.5, Table 11.1, Appendices A, C, D, G, new Appendix O, Figures O1 and O2 Published on April 1999 Approved for publication in New Zealand on behalf of the Standards Council of New Zealand on 17 February 1999 AMDT No APR 1999 Page Preface Insert new paragraph after Item (p) as follows: Australian and New Zealand references are separated by a slash (/) Australian references apply in Australia, and New Zealand references apply in New Zealand Joint Standards apply in both Australia and New Zealand AMDT No APR 1999 Page 11 Clause 1.1.1 Delete Item (e) and replace with the following: (e) from the outlet of the first regulator on a fixed consumer piping installation where the LP Gas container is installed on the same site, or from the outlet of the consumer billing meter or regulator where LP Gas is reticulated to the site from storage off the site (see AG 601/NZS 5261) NOTE: Figures illustrating where each Standard or code applies are given in Appendix O AMDT No APR 1999 Page 11 Clause 1.1.1 Insert new Item (h) as follows: (h) from the outlet of the first regulator in an LP Gas installation supplying multiple customers on separate sites to the outlet of the customer billing meter or regulator on each site (see AG 603/NZS 5258) NOTE: Figures illustrating where each Standard or code applies are given in Appendix O AMDT No APR 1999 Page 13 Clause 1.5.23 Delete the designation ‘NZS’ and replace with ‘New Zealand’ ISBN 7337 2591 AMDT No APR 1999 Page 14 Clause 1.5.45, Item (b) Delete Item (b) and replace with the following: (b) A factory, office, workshop, store, warehouse, shop or building where people are employed, except a building used specifically for the storage and handling of LP Gas AMDT No APR 1999 Page 16 Clause 1.5.2 AMDT No APR 1999 Page 25 Table 3.2 Delete the designator ‘1.5.2’ and replace with ‘1.5.62’ Insert new Note 4: Specific requirements for service stations are provided in Clauses 9.5.9 and 9.5.14(b) AMDT No APR 1999 Page 26 Clause 3.5.7 Delete the Clause and replace with the following: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 3.5.7 Regulators Regulators shall comply with UL 144 or other equivalent Standard (see Clause 4.11.3) AMDT No APR 1999 Page 26 Clause 3.6.1, Item (c), line AMDT No APR 1999 Page 26 Clause 3.6.1, Item (e) Delete the words ‘, Parts and 2’ Delete the Item and replace with the following: (e) AMDT No APR 1999 Piping which operates at a pressure less than 200 kPa shall comply with AGA/ALPGA AG 601 or AG 603 Page 29 Clause 4.2.4 Delete the first paragraph and replace with the following: The installation shall comply with AS 3000/NZ Electricity Regulations 1993 and AS 2381.1 AMDT No APR 1999 Page 31 Clause 4.2.6 Delete Clause 4.2.6 and replace with the following: 4.2.6 On-site storages and flammable and combustible materials LP gas tanks shall be separated from stores of flammable or combustible materials as follows: (a) At least m from any above-ground tank, package store or filling area for flammable or combustible materials (b) At least m from the top of the bund of a compound in which flammable liquids are stored (c) At least m from any vent outlet of flammable liquids store (measured horizontally) (d) For stores of flammable liquids, as determined by AS 1940 or this Standard, whichever is the greater AMDT No APR 1999 Page 34 Clause 4.7.2 Insert new paragraph before the Note as follows: The separation distances given in Clauses 4.7.7(d) and (e) shall apply AMDT No APR 1999 Page 35 Clause 4.7.7, Item (e) Delete Item (e) and replace with the following: (e) AMDT No APR 1999 To an entrance to an enclosed portion of any underground drain, conduit or utilities pit — 12 m, but this distance may be reduced to m where the liquid loss on disconnection is less than L Page 39 Clause 4.9.8, Item (b) Delete Item (b) and replace with the following: (b) By painting The colour shall be either Raffia No X31 (first preference) or white Such pipes shall be marked at critical locations with tracer colours of Raffia No X31 for liquid lines for Aqua No B25 for vapour lines Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTE: Colour code numbers are taken from AS 2700 AMDT No APR 1999 Page 40 Clause 4.11.1 Delete Item (c) and replace with the following: (c) AMDT No APR 1999 A single-stage regulator or the first stage of a multi-stage regulator shall be located so that the length of the piping which is subject to cylinder or tank pressure is as short as practicable For cylinder installations, see also Clause 6.4.7(f) Page 40 Clause 4.11.3 Delete the Clause and replace with the following: 4.11.3 Overpressure protection Overpressure protection shall comply with the requirements of UL 144 (shut-off devices or type II relief valves)/NZS 5261, or other equivalent standard AMDT No APR 1999 Page 44 Table 5.1 Delete the Table and replace with the following: TABLE 5.1 SEPARATION REQUIREMENTS FOR UNDERGROUND STORAGE SYSTEMS From Tank shell Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Tank fitting, e.g valve, flange, ullage gauge To Minimum requirement Public place boundary Adjacent property boundary As illustrated in Figure 5.1 Protected place (on or off site) No specific requirement, limited by other requirements Adjacent LP Gas tank 1m Public place 3m Adjacent property 6m Protected place 6m Pump See Clause 4.12.5 Filling connection For a wet hose delivery* and inward flow only, distances are as for tank fittings; otherwise for remote connections as per Clause 4.7.7(b) to (e) and requirements as for Clause 4.7.3 For direct connections, Clause 4.7.2 shall apply Safety valve discharge See Clause 5.5.2 * This term refers to a hose assembly design which limits the loss of LP Gas liquid on disconnection to L or less AMDT No APR 1999 Page 46 Clause 5.4.3 Insert new Item (e) as follows: (e) AMDT No APR 1999 The access pit shall be provided with a means of limiting, or of detecting and dissipating, any buildup of vapour prior to access Page 46 Clause 5.4.4 Delete the Clause and replace with the following: 5.4.4 Contents gauging The following requirements apply: (a) Where the contents gauge is obscured by the filling connection, a means of remote gauging system shall be used (b) Any contents gauge within an access pit shall be capable of being read at all times, without the aid of a portable light source AMDT No APR 1999 Page 50 Clause 6.4.2 Delete the Clause and replace with the following: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 6.4.2 Cylinder location Cylinders that are installed outdoors shall be located in accordance with the following requirements: AMDT No APR 1999 (a) Cylinders shall be separated from protected places, public places, railway lines and ignition sources in accordance with Table 6.1 (b) Where the cylinders are adjacent to a building, they may be placed next to each other in a group of up to 2500 L aggregate water capacity (c) There shall be a minimum distance of m between the cylinder groups (see Item (b) above and Figure 6.1) (d) Where any opening into the building is below the level of the cylinder’s pressure relief valve, the nearest cylinder shall be at least m away, measured horizontally (e) Where a cylinder is installed beneath a window, the distance between the top of any cylinder valve and the bottom of the window’s opening shall be at least that specified in Figure E2 or E3 of Appendix E Page 51 Figure 6.1 Delete the Figure and replace with the following: NOTES: Cylinders in groups need not be manifolded They may supply different installations Additional requirements apply if the cylinders are fitted in situ (see Clauses 6.4.8 and 10.12.4) See Table 6.1 for separation distances to protected places, public places, railway lines and ignition sources FIGURE 6.1 DISTANCES BETWEEN CYLINDER GROUPS AMDT No APR 1999 Page 51 Clause 6.4.7, title AMDT No APR 1999 Page 51 Clause 6.4.7, Item (c) Delete the word ‘Installation’ and replace with ‘Installing cylinders’ Delete the Note to Item (c) AMDT No APR 1999 Page 55 Clause 7.2.2 Delete the Clause and replace with the following: 7.2.2 Filling by volume by volume, as follows: The appropriate method shall be used when filling cylinders (a) Decanting — if the cylinder is designed and properly set up for decanting by having a fixed liquid level gauge (b) Pump filling — if the cylinder is designed and properly set up for pump filling by having an appropriate automatic fill limiting device Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited When filling by pumping, the pumping rate shall be appropriate to the cylinder size, in order to reduce the likelihood of overfilling AMDT No APR 1999 Page 61 Clause 9.1, line AMDT No APR 1999 Page 65 Clause 9.5.1, line AMDT No APR 1999 Page 72 Clause 9.7.3.3, Item (a) Insert the word ‘additional’ after the word ‘provides’ Insert the words ‘, Table 3.2’ after the words ‘Clauses 9.1 to 9.4’ Insert new third paragraph as follows: Where the population limit area partly encroaches on a dwelling, the population attributed to the dwelling should be proportionally reduced unless — AMDT No APR 1999 (i) the only entry to or egress from the dwelling falls within that area; or (ii) there is no means of egress from the dwelling which would allow a person to move to a safe distance on or off the site Page 80 Clause 10.5.5 Delete Item (b) and replace with the following: (b) Hoses and couplings which are assembled and tested in accordance with the manufacturers’ guidelines, and in compliance with AS 1869 or its equivalent, shall, at the end of five years’ service, be either— (i) replaced; or (ii) tested at a pressure of 2.4 MPa at intervals not exceeding year thereafter AMDT No APR 1999 Page 82 Clause 10.7 Delete the Clause and replace with the following: 10.7 PREPARATIONS FOR THE TRANSPORT OR REMOVAL OF STORAGE TANKS Storage tanks shall be prepared for transport to or from their installation sites under the following conditions: (a) A tank of 8kL capacity or less may contain LP Gas but shall be nominally liquidfree (b) A tank over 8kL and up to 125 kL capacity may contain LP Gas, provided that the pressure does not exceed 200 kPa (c) A tank exceeding 125 kL capacity shall be purged and LP Gas-free Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTES: Requirements for the permanent decommissioning of tanks are given in Clause 10.2.7 Portable tanks and skid tanks may be transported in accordance with the ADG Code, and are not subject to the requirements of Clause 10.7 AMDT No APR 1999 Page 85 Clause 10.11.3, Item (e) AMDT No APR 1999 Page 86 Clause 10.12.5 Delete Item (e) and Replace with ‘Not applicable’ Delete the Clause and replace with the following: 10.12.5 Filling at automotive fuel dispensers (Australia only) Only cylinders that are permanently mounted on a vehicle to fuel an engine or liquid phase burner shall be filled from an automotive fuel dispenser Any vehicle which has a burner operating (being an ignition source) shall not be allowed to enter the dispenser area NOTES: Automotive LP Gas may comprise blends for which appliances have not been tested or approved AS 1425 requires that, since October 1980, a cylinder installed for in situ filling be provided with an automatic fill limiter AMDT No APR 1999 Page 90 Table 11.1 Delete Table 11.1 and replace with the following: TABLE 11.1 FIRE PROTECTION FACILITIES FOR CYLINDER STORAGE Aggregate capacity L ≤1 000 >minor storage, outdoors >minor storage, indoors No specific requirements At least one hose reel or one extinguisher* >1 000 ≤12 000 At least one hose reel or one extinguisher >12 000 ≤60 000 At least one hose reel and one extinguisher, or two hose reels >60 000 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Requirements At least two extinguishers and two hose reels with one on-site hydrant system, or monitors, or a sprinkler system * This requirement does not apply to domestic portable cylinders used in a residential situation AMDT No APR 1999 Page 97 Appendix A, line Delete the following line AG 601 Installation code for gas-burning appliances and equipment AMDT No APR 1999 Page 97 Appendix A, line Insert the following references after line 9: AG 601 Installation code for gas burning appliances and equipment AG 603 Gas reticulation code AMDT No APR 1999 Page 105 Paragraph C2.2 Delete the text and replace with the following: An above-ground tank or tank storage area shall be provided with a placard in accordance with Paragraph C2.3 Where the tank and pump are underground, the placard shall be in accordance with Figure C1 and Clause C5.3 AMDT No APR 1999 Page 105 Paragraph C3.1 Delete Paragraph C3.1 including Note and replace with the following: C3.1 Surface coating of cylinders A cylinder shall not be installed or used unless its surface or protective coating is suitable for the conditions of use AMDT No APR 1999 Page 108 Appendix D Insert new Paragraph D1 as follows, and re-number the subsequent paragraph designators: D1 INTRODUCTION This Appendix is derived from the requirements of AS 1210 and provides equations for some common applications For applications that are not covered below, the requirements of AS 1210 shall apply In case of conflict, AS 1210 shall take precedence AMDT No APR 1999 Page 112 Appendix G, Paragraph G2.3 Insert new paragraph after Item (g) as follows: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Pipework operating at pressures exceeding 200 kPa shall also be tested in accordance with AS 4041 or equivalent Standard, in addition to the requirements given above AMDT No APR 1999 Page 128 Appendix O Insert new Appendix O after Appendix N, as attached: APPENDIX O SCOPE OF AS/NZS 1596 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (Informative) FIGURE O1 LP GAS CONTAINER SUPPLYING SEVERAL SITES BY RETICULATION FROM A SINGLE LP GAS SUPPLY Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AMDT No APR 1999 FIGURE O2 LP GAS CONTAINER SUPPLYING APPLIANCES ON A SINGLE SITE .. .AS / NZS 1596 /Amdt 1/1999-04-05 STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND Amendment No to AS / NZS 1596:1997 Storage and handling of LP Gas REVISED TEXT The 1997 edition of AS / NZS 1596... building used specifically for the storage and handling of LP Gas AMDT No APR 1999 Page 16 Clause 1.5.2 AMDT No APR 1999 Page 25 Table 3.2 Delete the designator ‘1.5.2’ and replace with ‘1.5.62’ Insert... Item (p) as follows: Australian and New Zealand references are separated by a slash (/) Australian references apply in Australia, and New Zealand references apply in New Zealand Joint Standards