UL 147A-2018 UL Standard for Safety Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies (Fourth Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 147A Nonrellable (Disposable) Type Fuel Gas Cylinder Assemblies STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULU

2、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Nonrellable (Disposable) Type Fuel Gas Cylinder Assemblies, UL 147A Fourth Edition, Dated June 6, 2018 Summary of Topics This new edition of ANSI/UL 147A includes a re

3、vision to the Moist Ammonia-Air Stress Cracking Test and miscellaneous editorial corrections. The revised requirements are substantially in accordance with Proposal(s) on this subject dated April 20, 2018. All rights reserved. No part of this publication may be reproduced, stored in a retrieval syst

4、em, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability

5、 or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL

6、representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL ha

7、rmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JUNE 6, 2018 UL 147A tr1UL COPYRIGHTED MATERIAL

8、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 6, 2018 UL 147A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 6, 2018 1 UL 147A Standard for Nonrellable (Disposable) Typ

9、e Fuel Gas Cylinder Assemblies First Edition October, 1992 Second Edition September, 1996 Third Edition March, 2005 Fourth Edition June 6, 2018 This ANSI/UL Standard for Safety consists of the Fourth Edition. The most recent designation of ANSI/UL 147A as an American National Standard (ANSI) occurre

10、d on June 6, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative St

11、andards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusiv

12、e property of UL. COPYRIGHT 2018 UNDERWRITERS LABORATORIES INC. ANSI/UL 147A-2018UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 6, 2018 UL 147A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI

13、STRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Components4 3 Units of Measurement .5 4 Undated References 5 5 Glossary .5 6 Pressure and Temperature Ratings .6 7 Size and Filling Limitations .6 CONSTRUCTION 8 General 6 9 Assembly 7 10 Materials7 PERFORMANCE 11 General.8 12

14、Leakage Test8 13 Connection Valve Endurance Test .9 14 Hydrostatic Pressure Strength Test 9 15 Start-to-Discharge and Resealing-Pressure, Tests of Pressure Relief Valves.10 16 Fire Test.11 17 Accelerated Aging Test 11 18 Fuel Gas Compatibility Test 11 18.1 General .11 18.2 Volume change 12 18.3 Weig

15、ht loss 12 19 Low Temperature Test 12 20 Moist Ammonia-Air Stress Cracking Test 13 MANUFACTURING AND PRODUCTION TESTS 21 General13 MARKING 22 General14 JUNE 6, 2018 UL 147A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scop

16、e 1.1 These requirements cover nonrellable cylinder assemblies for use with propane, Methylacetylene-Propadiene, Stabilized (MPS-Gas), and propylene. 1.2 Nonrellable cylinder assemblies covered by these requirements are used with equipment for such purposes as, and not limited to, camping, cooking,

17、heating, lighting, soldering, or brazing, and as covered in the following standards: a) Liqueed Petroleum Gas Code, NFPA 58-2004. b) Standard for Hand-Held Torches for Fuel Gases, UL 147. c) Portable Catalytic Camp Heaters for Use with Propane Gas, ANSI Z21.62-1977(1992). d) Portable Type Gas Camp H

18、eaters, ANSI Z21.63-2000. e) Portable Type Gas Camp Stoves, ANSI Z21.72-2000. f) Portable Type Gas Camp Lights, ANSI Z21.73-2000. g) Portable Refrigerators for Use with HD-5 Propane Gas, ANSI Z21.74-1992 (1998). 1.3 Methylacetylene-Propadiene, Stabilized (MPS-Gas) used in nonrellable cylinder assemb

19、lies shall be as dened in the Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes, NFPA 51-2002. 1.4 These requirements do not cover aerosol type containers covered by the requirements in the Standard for Nonrellable (Disposable) Type Metal

20、Container Assemblies for Butane, UL 147B. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is not required to comply with a specic requirement that: a) Involves a feature or character

21、istic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. JUNE 6, 2018 UL 147A 4UL COPYRIGHTED MATE

22、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceed

23、ing specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing

24、 in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard the following denitions apply. 5.2 CTC REGULATIONS The Canadian Transport Commission Regulations for the Transportation of Dangerous

25、 Commodities by Rail. 5.3 CYLINDER A portable container that complies with the specication for cylinders constructed under Subpart C of Part 178 of the DOT Regulations and similar cylinder specications of the CTC Regulations. 5.4 DOT REGULATIONS The U.S. Department of Transportation (DOT) Regulation

26、s for the Transportation of Hazardous Materials, under Code of Federal Regulations (CFR), Title 49, Parts 100 199. 5.5 PRESSURE-RELIEF DEVICE A pressure or temperature, or both, activated device used to prevent the pressure from rising a predetermined maximum, and thereby prevent rupture of a normal

27、ly charged cylinder when subjected to a standard re test as required by 49CFR 173.34(f) of the TC and CTC regulations. The term pressure relief device is synonymous with safety relief device as used by DOT, TC or CTC regulations. 5.6 TC REGULATIONS The regulations of Transport Canada as published in

28、 Transportation of Dangerous Goods Regulations. JUNE 6, 2018 UL 147A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6 Pressure and Temperature Ratings 6.1 The marked service pressure rating of the nonrellable cylinder assembly shall not ex

29、ceed 80 percent of the marked test pressure. 6.2 The marked test pressure is the maximum pressure of contents at 130F (54C), but not less than 180 psig (1240 kPa). 6.3 Nonrellable cylinder assemblies covered by these requirements are intended for use and storage at ambient temperatures within the ra

30、nge of minus 4 to plus 130F (minus 20 to plus 54.4C). 7 Size and Filling Limitations 7.1 The maximum size of the nonrellable cylinder assembly shall not exceed 75 cubic inches (1.23 L), 2.71 pounds (1.23 kg) water capacity. 7.2 The maximum fuel gas content in a nonrellable cylinder assembly shall be

31、 that quantity which equals the maximum permitted lling density in accordance with the Code of Federal Regulations (CFR), Title 49, Chapter 1, Part 173.304. 7.3 Propane contained in nonrellable cylinder assemblies shall be odorized in accordance with the Liqueed Petroleum Gas Code, NFPA 58-2004. CON

32、STRUCTION 8 General 8.1 A nonrellable cylinder assembly shall incorporate a pressure vessel constructed in accordance with Specication 39 of the DOT regulations, Code of Federal Regulations, Title 49, Chapter I, Part 178.65 and be so marked. 8.2 A nonrellable cylinder assembly shall incorporate pres

33、sure relief device(s) in accordance with U.S. DOT regulations, Code of Federal Regulations, Title 49, Chapter I, Part 173.301(f) and this standard. 8.3 A nonrellable cylinder shall be designed for vapor withdrawal in its position of normal use. The cylinder shall not have provisions for liquid withd

34、rawal. 8.4 A nonrellable cylinder assembly shall be made of corrosion-resistant material or be provided with a corrosion-resistant exterior coating equivalent to that afforded by paint. JUNE 6, 2018 UL 147A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERM

35、ISSION FROM UL 9 Assembly 9.1 A nonrellable cylinder assembly shall include all of the components required for its intended function and installation, and shall be furnished as a single unit or assembly. 9.2 The cylinder assembly shall be provided with an integral shutoff valve that closes automatic

36、ally when the cylinder assembly is disconnected from the gas-consuming equipment. 9.3 The valve stem shall be recessed, or otherwise protected so that the valve is not subjected to direct impact when the container is dropped onto a at surface. 9.4 The cylinder assembly shall incorporate a Type CGA N

37、o. 600 connection in accordance with the Compressed Gas Association Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connections, CGA V-1-2003. 9.5 A nonrellable metal container assembly shall incorporate pressure relief device(s) or system(s) that will operate to reduce the risk of ruptu

38、re or propulsion of container parts from pressure buildup from a re condition. See the Fire Test, Section 16. 10 Materials 10.1 Operating and pressure-containing parts of shutoff and relief valve assemblies shall have the strength and durability to provide reliable service of the assembly. 10.2 To c

39、omply with the requirement of 10.1, a material for gas-conning parts shall have a melting point (solidus temperature) of at least 950F (510C) and a tensile strength of at least 10,000 psi (68.9 MPa) at 204C (400F). Exception: A valve disc, soft seat, seal ring, diaphragm, or gasket is not required t

40、o comply with this requirement. 10.3 Materials shall be resistant to the action of the fuel gas to which they are exposed to during servicing. 10.4 With reference to the requirement in 10.3, elastomeric and polymeric materials shall be subjected to the Accelerated Aging Test, Section 17, the Fuel Ga

41、s Compatibility Test, Section 18, and the Low Temperature Test, Section 19. Exception: Chlorotriuoroethylene polymers, tetrauoroethylene, uorinated ethylene propylene polymers, and polyamides with a composition of polyhexamethylene adipamide or polycapromide polymers (nylon 6 or 6/6) are not prohibi

42、ted from being used without additional testing. 10.5 If atmospheric corrosion of a ferrous part impairs the intended operation, the part shall be provided with a corrosion-resistant protective coating. 10.6 A protective coating shall resist corrosion to the degree not less than that provided by the

43、protective coatings specied in 10.7. JUNE 6, 2018 UL 147A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 10.7 Cadmium plating shall have a thickness of not less than 0.0003 inch (0.008 mm), and zinc plating shall have a thickness of not le

44、ss than 0.0005 inch (0.013 mm). Exception: When threads constitute the major portion of the area of a part, the thickness of the cadmium or zinc plating shall not be less than 0.00015 inch (0.0038 mm). 10.8 A fuel-conning part of an inlet or relief valve that is made of drawn brass or machined from

45、a brass rod made of copper alloy containing more than 15 percent zinc and incorporating internal threads shall withstand without cracking, the Moist Ammonia-Air Stress Cracking Test, Section 20. 10.9 Parts made of metals having widely varying coefficients of thermal expansion and exposed to heat sha

46、ll not be used in combination when threaded together with the intent to reduce the risk of external leakage of fuel. 10.10 Copper or brass materials containing more than 67 percent copper shall not be used for parts in contact with MPS-Gas. 10.11 A brazing material used for joining parts of a cylind

47、er assembly shall have a melting point (solidus temperature) not less than 1000F (538C). PERFORMANCE 11 General 11.1 A representative sample of each size and specic construction of cylinder assembly and parts constructed of nonmetallic materials are to be subjected to the tests specied in Sections 1

48、2 20, as appropriate. 11.2 For the leakage tests a source of aerostatic pressure such as air or nitrogen is to be used. 11.3 Water or other liquid of comparable or lighter viscosity is not prohibited from being used for producing the required pressure in a hydrostatic-pressure strength test. 12 Leak

49、age Test 12.1 A representative sample of the cylinder assembly shall not show evidence of external leakage at the inlet connection tting or cylinder joints when subjected to a pressure of 375 psig (2588 kPa) when tested in accordance with 12.2. 12.2 Three empty cylinder assemblies shall be connected to a system of adequate pressure. A positive shutoff valve and pressure indicating device are to be installed in the pressure supply piping. The samples shall have the re