1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1331 Station Inlets and OutletsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
2、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Station Inlets and Outlets, UL 1331 First Edition, Dated September 30, 2005 SUMMARY OF TOPICS This revision of UL 1331 is being issued to revise the Moist Ammonia-Air Stress Cracking Test. Text that has been changed in
3、any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement be
4、comes effective. The revised requirements are substantially in accordance with Proposal(s) on this subject dated August 8, 2014. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopy
5、ing, 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 or tness for any purpose. In no event will UL be liable for any special, inc
6、idental, 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 representative has been advised of the possibility of such damage. In no even
7、t 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 harmless from and against any loss, expense, liability, damage, claim, or judgm
8、ent (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elem
9、ents of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. AUGUST 25, 2014
10、UL 1331 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 25, 2014 UL 1331 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 30, 2005 (Title P
11、age Reprinted: August 25, 2014) 1 UL 1331 Standard for Station Inlets and Outlets First Edition September 30, 2005 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 Sta
12、ndards Development System (CSDS) at http:/. 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 exclusive
13、property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 25, 2014 STATION INLETS AND OUTLETS - UL 1331 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD
14、UCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 5 2.1 Components .5 2.2 Units of measurement .5 2.3 Undated references .6 3 Glossary .6 CONSTRUCTION 4 Assembly 7 PERFORMANCE 5 General 8 6 External and Seat Leakage Test 9 7 Endurance Test for Station Outle
15、ts and Inlets 9 7A Endurance Test for Shut-Off Valves 10 8 Operational Pressure Test 10 9 Hydrostatic Strength Test 10A 10 Accelerated-Aging Test 10A 10A Accelerated Aging Test for Nonmetallic Tubes of Flow Meters 10A 11 Moist Ammonia-Air Stress Cracking Test .10B STATION INLETS AND OUTLETS FOR MANU
16、FACTURED ASSEMBLIES 12 General 10B 13 Burst Strength Test .10B 14 Flame Spread Test .12 15 Cleansing Agents .12 16 Antiseptics .12 17 Accelerated Aging Thermoplastic Materials 13 18 Usage .13 18.1 Tubing and hose .13 19 Electrical Resistance Tests 14 19.1 General .14 19.2 Test equipment 14 MARKINGS
17、20 General 14 AUGUST 25, 2014 STATION INLETS AND OUTLETS - UL 1331 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 30, 2005 STATION INLETS AND OUTLETS - UL 1331 4 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT
18、HER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1 effective March 30, 2007 1.1 These requirements cover station inlets and outlets intended for use in hospitals for distribution of nonammable medical gas in rigid piping systems in accordance with the Standard for Hea
19、lth Care Facilities, NFPA 99. 1.2 These requirements do not cover station inlets and outlets designed to operate at non-standard operating pressures as dened in the Standard for Health Care Facilities, NFPA 99. 2 General 2 effective March 30, 2007 2.1 Components 2.1.1 Except as indicated in 2.1.2, a
20、 component of a product covered by this standard shall comply with the requirements for that component. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this
21、standard, or b) Is superseded by a requirement in this standard. 2.1.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components ar
22、e intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximat
23、e information. SEPTEMBER 30, 2005 STATION INLETS AND OUTLETS - UL 1331 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard s
24、hall be interpreted as referring to the latest edition of that code or standard. 3 Glossary 3 effective March 30, 2007 3.1 For the purpose of this standard the following denitions apply. 3.2 ABBREVIATIONS For the purpose of this standard the following abbreviations apply: SCFM Standard Cubic Feet Pe
25、r Minute SLPM Standard Liters Per Minute 3.3 CONDUCTIVE Electrically conductive. 3.4 ELECTRICALLY CONDUCTIVE MATERIAL A material electrically conductive to a degree that the product will discharge or prevent the accumulation of static electricity, or both, in accordance with these requirements. 3.5
26、GAS-SPECIFIC Having characteristics that prevent interchangeability and thereby allow assignment to one gas or vacuum service only. 3.6 MANUFACTURED ASSEMBLIES A factory-assembled product designed for aesthetics or convenience that contains medical gas or vacuum outlets, piping, or other devices rel
27、ated to medical gases. a Examples of manufactured assemblies include headwalls, columns, ceiling columns, ceiling hung pendants, and movable track systems. 3.7 NONCONDUCTIVE Electrically nonconductive. 3.8 QUICK CONNECTOR A pair of non-threaded gas-specic components, which can be easily and rapidly
28、joined together by a single action of one or both hands without the use of tools. 3.9 STATION INLET An inlet point in a piped medical, surgical vacuum distribution system at which the user makes connections and disconnections. 3.10 STATION OUTLET An outlet point in a piped medical gas distribution s
29、ystem at which the user makes connections and disconnections. 3.11 WASTE ANESTHETIC GAS DISPOSAL (WAGD) A station inlet that captures and carries away gases vented from the patient during the operation of gas anesthesia or analgesia equipment. 3.11 added March 5, 2009 a Reprinted with permission fro
30、m NFPA 99-2005 Health Care Facilities, Copyright 2005, National Fire Protection, Quincy, MA 02269. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety. MARCH 5, 2009 STATION INLETS AND OUTL
31、ETS - UL 1331 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 4 Assembly 4 effective March 30, 2007 4.1 Each station outlet/inlet for medical gases or vacuum shall be gas specic, whether the outlet/inlet is threaded, or is a no
32、n-interchangeable quick-coupler. a 4.2 Each station outlet shall consist of a primary and a secondary valve (or assembly). a 4.3 Each station inlet shall consist of a primary valve (or assembly) and shall be permitted to include a secondary valve (or assembly). a 4.4 The secondary valve (or assembly
33、) shall close automatically to stop the ow of gas (or vacuum, if provided) when the primary valve (or assembly) is removed. a 4.5 Threaded outlets/inlets shall be non-interchangeable connections complying with the Diameter Index Safety System (Non-Interchangeable Low Pressure Connections for Medical
34、 Gas Applications), CGA V-5. a 4.6 Each station outlet/inlet, including those mounted in columns, hose reels, ceiling tracks, or other special installations, shall be designed so that parts or components that are required to be gas-specic cannot be interchanged between station outlet/inlet for diffe
35、rent gases. a 4.7 The use of common parts in outlets/inlets, such as springs, O-rings, fasteners, seals, and shutoff poppets, are permitted. a 4.8 Recessed outlets shall be provided with mounting brackets and a cover plate. 4.9 Factory installed copper inlet tubes on station outlets extending no fur
36、ther than 8 in. (205 mm) from the body of the terminal shall be not less than 3/8 in. OD DN8 (NPS 1/4) size, with 0.3 in. (8 mm) minimum inside diameter. a 4.10 Factory installed copper inlet tubes on station inlets extending no further than 8 in. (205 mm) from the body of the terminal shall be not
37、less than 1/2 in. OD DN10 (NPS 3/8) size, with 0.4 in. (10 mm) minimum inside diameter. a 4.11 Flared and compresssion-type connections to station outlets are prohibited. 4.12 Seamless copper tube shall meet the requirements of Standard Specication for Seamless Copper Tube for Medical Gas Systems, A
38、STM B 819. a Reprinted with permission from NFPA 99-2005 Health Care Facilities, Copyright 2005, National Fire Protection, Quincy, MA 02269. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entir
39、ety. SEPTEMBER 30, 2005 STATION INLETS AND OUTLETS - UL 1331 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 5 General 5 effective March 30, 2007 5.1 Representative samples each basic design shall comply with the applicable perf
40、ormance requirements indicated in Table 5.1. 5.2 Additional samples of parts constructed of nonmetallic materials, such as valve seats and “O” rings are required for the tests specied in the Accelerated Aging Test for Elastomers, Section 10. Table 5.1 Required tests Table 5.1 revised March 5, 2009 T
41、est Station inlet Station outlet Station inlet for manufactured assemblies Station outlet for manufactured assemblies External and Seat Leakage Test, Section 6 XX Endurance Test for Station Outlets and Inlets, Section 7 XXXX Endurance Test for Shutoff-Valves, Section 7A XXXX Operational Pressure Tes
42、t, Section 8 XXXX Hydrostatic Strength Test, Section 9 XXXX Accelerated Aging Test, Section 10 XXXX 10-Day Moist Ammonia-Air Stress Cracking Test, Section 11 XXXX Hose for station inlets and outlets for manufactured assemblies Burst Strength Test, Section 13 X Flame Spread Test, Section 14 X X Clean
43、sing Agents, Section 15 X X Antiseptics Test, Section 16 X X Accelerated Aging Thermoplastic Materials Test, Section 17 XX (external leakage) (X) Usage Test, Section 18 X X (external leakage) (X) Electrical Resistance Test, Section 19 X X MARCH 5, 2009 STATION INLETS AND OUTLETS - UL 1331 8UL COPYRI
44、GHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6 External and Seat Leakage Test 6 effective March 30, 2007 6.1 A station outlet shall not leak across operating seats when tested as described in 6.3. 6.2 To determine compliance with 6.1, two samples
45、of each basic design are to be tested. 6.3 The test is to be conducted using oil-free air or nitrogen at twice the maximum rated pressure but not less than 200 psig. The test is conducted with the adapter connected to the sample and the outlet of the adapter plugged and with the adapter removed. Sta
46、tion inlets, when provided with a secondary valve, and station outlets are also conducted with the primary valve removed. The test pressure is to be maintained for at least 1 minute. The tests are repeated after the Endurance Test, Section 7. 7 Endurance Test for Station Outlets and Inlets 7 effecti
47、ve March 30, 2007 7.1 A station outlet and inlet shall operate as intended following the endurance test when tested as described in 7.3. 7.2 To determine compliance with 7.1, one sample of each basic design is to be tested. 7.3 For station outlets the test is to be conducted using oil-free air or ni
48、trogen at 100 psig or at the rated pressure whichever is greater. 7.4 For station inlets that do not use common station outlet parts, the test is to be conducted at rated vacuum pressure. 7.5 The sample shall be subjected to 25,000 cycles on the primary valve and 100,000 cycles on the secondary valv
49、e. One cycle consists of opening and closing the valves. 7.6 Station inlets with only a primary valve are subjected to 100,000 cycles. One cycle consists of opening and closing the valves. 7.7 After the conclusion of the 100,000 cycles the station outlet and inlet shall operate as intended. 7.8 After the conclusion of the 100,000 cycles the station outlet samples are reassembled and the leakage tests are repeated. MARCH 5, 2009 STATION INLETS AND OUTLETS - UL 1331 9UL COPYRIGHTED MATERI
