1、Designation: D7325 07D7325 13Standard Practice forHandling, Transportation, and Storage of IG-541 N2, Ar ,CO21This standard is issued under the fixed designation D7325; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers guidance and direction to suppliers, purchasers, and users in the handling, transportation, and sto
3、rageof IG-541.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the safety conce
4、rns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 CGA Standards2C-1 Methods for HydrostaticPressure Testing o
5、f Compressed Gas CylindersC-4 American National Standard Method of Marking Portable Compressed Gas Containers to Identify the Material ContainedC-6 Standards for Visual Inspection of Steel Compressed Gas CylindersC-7 Guide to Preparation of Precautionary Labeling and Marking of Compressed Gas Contai
6、nersP-1 Safe Handling of Compressed Gases in Containers2.2 U.S. Government Standards:3Code of Federal Regulations (CFR) Title 40 , Part 82.106CFR Title 49, Part 172 , U.S. Department of Transportation (DOT), Hazardous Materials Table, Special Provisions, HazardousMaterials Communications, Emergency
7、Response Information, and Training RequirementsCFR Title 49, Part 172.101 , U.S. DOT, Tables of Hazardous Materials and Special ProvisionsCFR Title 49, Part 173 , U.S. Department of Transportation (DOT) Specifications, Shippers-General Requirements for Shippingand PackagingsCFR Title 49, Part 178 ,
8、U.S. DOT Specifications, Specifications for PackagingsCFR Title 49, Part 180 , U.S. DOT, Continuing Qualification and Maintenance of Packagings3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Containers, Containersnstorage vessels for IG-541.3.1.2 Cylinders, Cylindersvcontainer
9、s of IG-541.3.1.3 IG-541,IG-541 n(N2, Ar, CO2)N2, Ar, CO2; a compoundmixture used to inert or suppress a fire or explosion hazard.3.1.4 Insulated, Insulatedadjplaced in an isolated situation to protect and prevent the transfer of damage.1 This practice is under the jurisdiction of ASTM Committee D26
10、 on Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct responsibility ofSubcommittee D26.09 on Fire Extinguishing Agents.Current edition approved July 1, 2007March 15, 2013. Published August 2007April 2013. Originally approved in 2007. Last previous edition approved in 2007
11、 as D7325 07. DOI: 10.1520/D7325-07.10.1520/D7325-13.2 Available from Compressed Gas Association (CGA), 4221 Walney Rd., 5th Floor, Chantilly, VA 20151-2923, http:/.Association.3 Available from Superintendent of Documents, US Government Printing Office, Washington, DC 20036.This document is not an A
12、STM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In
13、all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Significance and Use4.1 This practice provides requirements for the ha
14、ndling, transportation, and storage of IG-541 encountered in distributionthrough both commercial and military channels. It is intended to ensure that IG-541 is handled, transported, and stored in such away that its physical property virtues are not degraded. Transport may be by various means, such a
15、s, but not limited to, highway,rail, and water.5. Practice5.1 To ensure safe handling, loading, unloading, storing, and transporting of material, personnel shall be trained in the CGAStandards C-1, C-4, C-6, C-7 and P-1 and CFR Title 40, Part 82.106, CFRpublications and CFR regulations as listed in
16、2.1 Title49, Part 172, CFR Title 49, Part 172.101 and 2.2CFR Title 49, Part 173, CFR Title 49, Part 178 and CFR Title 49, Part 180. ,respectively.5.2 Handling:5.2.1 Handling shall be in accordance with CGA P-1.5.2.1.1 Personnel who handle or store, or both, cylinders of IG-541 shall be trained prope
17、rly to recognize and identify thecharacteristics of the product and the proper methods of safely handling full, partially full, and empty cylinders.5.2.2 Facility personnel must be trained in applicable CFR Title 49, Parts 173 and 178, and the CGA documents referenced in2.1.5.2.2 IG-541 handling sha
18、ll be in nonsmoking, heater-free, ventilated areas to preclude product accumulation. Provisions shallbe made to ensure that service areas limit IG-541 concentrations to not exceed 52 % (10% Sea Level Oxygen equivalency) for 30s and 7 % (19.5% Sea Level Oxygen Equivalency) for 8 h.5.2.3 Cylinders sha
19、ll not be overfilled. The maximum permitted filling density for pure IG-541 shall be .088 lb/ft3 (1.409 kg/m3). Filling density requirements are specified in CFR Title 49, 173.304 and CFR Title 49, 173.305.5.2.4 Cylinders shall be free of dirt and contamination that would contribute to or would caus
20、e deterioration of product duringshipment or storage. Precautions should be taken to prevent the entry of oil, water, or any other foreign matter into containers.Unique coatings or preservatives applied prior to shipment to protect the containers are not considered contamination.5.3 Transportation:5
21、.3.1 Transportation shall be as specified in accordance with DOT regulations of CFR Title 49.5.3.1.1 The minimum design pressure requirements shall be as indicated in CFR Title 49, Part 173.301. The pressure inside thecontainer at 70F (21C) shall not exceed the service pressure for which the contain
22、er is marked. The pressure inside the containerat 130F (54C) shall not exceed 5/4 times the service pressure for which the container is marked. Figs. 1 and 2 illustrate the effectof temperature on cylinders filled with IG-541.5.3.2 Transportation shall be by suitable vehicles to preclude cylinder da
23、mage by excessive mechanical vibration, shock,freezing, or deleterious high temperatures throughout the entire transport route.5.3.2.1 If cylinders are expected to be subjected to unacceptable transport conditions, the cylinders should be placed underinsulated conditions.5.3.3 Compressed gas cylinde
24、r permanent marking requirements shall be as specified under CFR Title 49, Part 178 and mustbe maintained in legible condition as required by CFR Title 49, Part 173. Warning labels shall be affixed to cylinders conformingto requirements of CFR Title 40, Part 82.106.5.4 Storage:5.4.1 Storage shall be
25、 in accordance with CGA P-1 in qualified cylinders in accordance with CFR Title 49, Parts 173 and 178.5.4.2 Cylinders should be stored in areas that will protect vessels from physical and environmental damage and tampering fromunauthorized personnel.5.4.2.1 Facilities should be of construction and o
26、rientation so that safety requirements are fulfilled for the storage of pressurizedcylinders.5.4.3 Storage cylinders shall be fitted with pressure release mechanisms to limit vessel pressure to not more than the ratedworking pressure of the IG-541 container in use at any particular time.5.4.3.1 Peri
27、odic hydrostatic testing and reinspection of cylinders used for IG-541 shall comply with CFR Title 49, Part 180.5.4.4 Insulation shall be placed on pallets or shoring, and provisions should be made to prevent excessive shock or thermalfluctuations to cylinders.5.4.5 Cylinders shall be stored in a ma
28、nner that will prevent contamination from external sources.6. Keywords6.1 N2; Ar; CO2; compressed gas; cylinders; explosion suppressant; fire suppressant; INERGEN; handling; IG-541; storage;transportD7325 132FIG. 1 IG-541 (150 Bar) Isometric DiagramD7325 133ASTM International takes no position respe
29、cting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This st
30、andard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Internati
31、onal Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below
32、.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).FIG. 2 IG-541 (200 Bar) Isometric DiagramD7325 134
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