ASTM D7325-21

This document is not an ASTM 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. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7325 − 13 D7325 − 21
Standard Practice for
Handling, Transportation, and Storage of IG-541 N , Ar , Ar,
CO
This standard is issued under the fixed designation D7325; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers guidance and direction to suppliers, purchasers, and users in the handling, transportation, and storage of
IG-541.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions 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 concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 CGA Standards:
C-1 Methods for Pressure Testing Compressed Gas Cylinders
C-6 Standards for Visual Inspection of Steel Compressed Gas Cylinders
C-7 Guide to Preparation of Precautionary Labeling and Marking of Compressed Gas ContainersClassification and Labeling of
Compressed Gases
P-1 Standard for Safe Handling of Compressed Gases in Containers
2.2 U.S. Government Standards:
Code of Federal Regulations (CFR) Title 40 , Part 82.106
49 CFR Title 49, Part 172 , U.S. Department of Transportation (DOT), Hazardous Materials Table, Special Provisions,
Hazardous Materials Communications, Emergency Response Information, and Training RequirementsTraining Requirements,
and Security Plans
49 CFR Title 49, Part 172.101 , U.S. DOT, Tables Purpose and Use of Hazardous Materials and Special ProvisionsTable
49 CFR Title 49, Part 173 , U.S. Department of Transportation (DOT) Specifications, Shippers-General Requirements for
ShippingShippers—General Requirements for Shipments and Packagings
49 CFR Title 49, Part 178 , U.S. DOT Specifications, Specifications for Packagings
49 CFR Title 49, Part 180 , U.S. DOT, Continuing Qualification and Maintenance of Packagings
This practice is under the jurisdiction of ASTM Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct responsibility of
Subcommittee D26.09 on Fire Extinguishing Agents.
Current edition approved March 15, 2013June 1, 2021. Published April 2013June 2021. Originally approved in 2007. Last previous edition approved in 20072013 as D7325
– 07.13. DOI: 10.1520/D7325-13.10.1520/D7325-21.
Available from Compressed Gas Association.Association (CGA), 8484 Westpark Drive, Suite 220, McLean, VA 22102, https://www.cganet.com.
Available from Superintendent of Documents, US Government Printing Office, Washington, DC 20036.Code of Federal Regulations (CFR) documents are available from
U.S. Government Publishing Office (GPO), 732 N. Capitol St., NW, Washington, DC 20401, https://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7325 − 21
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 Containers—containers, n—storage vessels for IG-541.
3.1.2 Cylinders—cylinders, n—containers of IG-541.
3.1.3 IG-541 (N , Ar, CO )—), n—a mixture used to inert or suppress a fire or explosion hazard.
2 2
3.1.4 Insulated—insulated, adj—placed in an isolated situation to protect and prevent the transfer of damage.
4. Significance and Use
4.1 This practice provides requirements for the handling, transportation, and storage of IG-541 encountered in distribution through
both commercial and military channels. It is intended to ensure that IG-541 is handled, transported, and stored in such a way that
its physical property virtues are not degraded. Transport may be by various means, such as, but not limited to, highway, rail, and
water.
5. Practice
5.1 To ensure safe handling, loading, unloading, storing, and transporting of material, personnel shall be trained in the CGA
publications and CFR regulations as listed in 2.1 and 2.2, respectively.
5.2 Handling:
5.2.1 Handling shall be in accordance with CGA P-1.Publication P-1 and as specified by the manufacturer.
5.2.1.1 Personnel who handle or store, or both, cylinders of IG-541 shall be trained properly to recognize and identify the
characteristics of the product and the proper methods of safely handling full, partially full, and empty cylinders.
5.2.2 All IG-541 transfers between storage containers and recycling processes shall be performed by personnel trained in handling
procedures.
5.2.3 The IG-541 recycling and transfer processes shall be in conjunction with the equipment specified by the manufacturer.
5.2.4
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