1、Designation: D 7324 07Standard Practice forHandling, Transportation, and Storage of IG-55 Ar N21This standard is issued under the fixed designation D 7324; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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, andstorage of IG-55.
3、1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, asso
4、ciated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 CGA Standards2C-1 Methods for Hydrostatic Testing of Compressed GasCylind
5、ersC-4 American National Standard Method of MarkingPortable Compressed Gas Containers to Identify theMaterial ContainedC-6 Standards for Visual Inspection of Steel CompressedGas CylindersC-7 Guide to Preparation of Precautionary Labeling andMarking of Compressed Gas ContainersP-1 Safe Handling of Co
6、mpressed 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,Hazardous Materials Communications, Emergency Re-sponse Information, and T
7、raining RequirementsCFR Title 49, Part 172.101 , U.S. DOT, Tables of Hazard-ous Materials and Special ProvisionsCFR Title 49, Part 173 , U.S. Department of Transportation(DOT) Specifications, Shippers-General Requirements forShipping and PackagingsCFR Title 49, Part 178 , U.S. DOT Specifications, Sp
8、ecifi-cations for PackagingsCFR Title 49, Part 180 , U.S. DOT, Continuing Qualifica-tion and Maintenance of Packagings3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Containers, nstorage vessels for IG-55.3.1.2 Cylinders, vcontainers of IG-55.3.1.3 IG-55, nAr N2; a compound us
9、ed to inert orsuppress a fire or explosion hazard.3.1.4 Insulated, adjplaced in an isolated situation toprotect and prevent the transfer of damage.4. Significance and Use4.1 This practice provides requirements for the handling,transportation, and storage of IG-55 encountered in distributionthrough b
10、oth commercial and military channels. It is intendedto ensure that IG-55 is handled, transported, and stored in sucha 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. Practice5.1 To ensure safe handling
11、, loading, unloading, storing,and transporting of material, personnel shall be trained in theCGA Standards C-1, C-4, C-6, C-7 and P-1 and CFR TItle 40,Part 82.106, CFR Title 49, Part 172, CFR Title 49, Part172.101, CFR Title 49, Part 173, CFR Title 49, Part 178 andCFR Title 49, Part 180.5.2 Handling
12、:5.2.1 Handling shall be in accordance with CGA P-1.5.2.1.1 Personnel who handle or store, or both, cylinders ofIG-55 shall be trained properly to recognize and identify thecharacteristics of the product and the proper methods of safelyhandling full, partially full, and empty cylinders.1This practic
13、e is under the jurisdiction of ASTM Committee D26 on Haloge-nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-bility of Subcommittee D26.09 on Fire Extinguishing Agents.Current edition approved July 1, 2007. Published August 2007.2Available from Compressed Gas Associati
14、on (CGA), 4221 Walney Rd., 5thFloor, Chantilly, VA 20151-2923, http:/.3Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700,
15、West Conshohocken, PA 19428-2959, United States.5.2.2 Facility personnel must be trained in applicable CFRTitle 49, Parts 173 and 178, and the CGA documents refer-enced in 2.1.5.2.3 IG-55 handling shall be in nonsmoking, heater-free,ventilated areas to preclude product accumulation. Provisionsshall
16、be made to ensure that service areas limit IG-55 concen-trations to not exceed 52 % (10 % Sea Level Oxygenequivalency) for 30 s and 7 % (19.5 % Sea Level OxygenEquivalency) for 8 h.5.2.4 Cylinders may be charged to a pressure 10 % in excessof their marked service pressure provided the requirementssp
17、ecified in CFR Title 49, 173.302 are met.5.2.5 Cylinders shall be free of dirt and contamination thatwould contribute to or would cause deterioration of productduring shipment or storage. Precautions should be taken toprevent the entry of oil, water, or any other foreign matter intocontainers. Uniqu
18、e coatings or preservatives applied prior toshipment to protect the containers are not considered contami-nation.5.3 Transportation:5.3.1 Transportation shall be as specified in accordance withDOT regulations of CFR Title 49.5.3.1.1 The minimum design pressure requirements shall beas indicated in CF
19、R Title 49, Part 173.301. The pressure insidethe container at 70F (21C) shall not exceed the servicepressure for which the container is marked. The pressure insidethe container at 130F (54C) shall not exceed 5/4 times theservice pressure for which the container is marked. Figs. 1 and2 illustrate the
20、 effect of temperature on cylinders filled withIG-55.5.3.2 Transportation shall be by suitable vehicles to pre-clude cylinder damage by excessive mechanical vibration,shock, freezing, or deleterious high temperatures throughoutthe entire transport route.5.3.2.1 If cylinders are expected to be subjec
21、ted to unac-ceptable transport conditions, the cylinders should be placedunder insulated conditions.5.3.3 Compressed gas cylinder permanent marking require-ments shall be as specified under Part 178 of CFR Title 49 andmust be maintained in legible condition as required by CFRTitle 49 Part 173. Warni
22、ng labels shall be affixed to cylindersconforming to requirements of CFR Title 40 Part 82.106.5.4 Storage:5.4.1 Storage shall be in accordance with CGA P-1, SafeHandling of Compressed Gases in Containers, in qualifiedcylinders in accordance with CFR Title 49, Parts 173 and 178.5.4.2 Cylinders should
23、 be stored in areas that will protectvessels from physical and environmental damage and tamper-ing from unauthorized personnel.5.4.2.1 Facilities should be of construction and orientationso that safety requirements are fulfilled for the storage ofpressurized cylinders.5.4.3 Storage cylinders shall b
24、e fitted with pressure releasemechanisms to limit vessel pressure to not more than the ratedworking pressure of the IG-55 container in use at any particulartime.5.4.3.1 Periodic hydrostatic testing and reinspection of cyl-inders used for IG-55 shall comply with Title 49 CFR, Part180.5.4.4 Insulation
25、 shall be placed on pallets or shoring, andprovisions should be made to prevent excessive shock orthermal fluctuations to cylinders.5.4.5 Cylinders shall be stored in a manner that will preventcontamination from external sources.6. Keywords6.1 Ar; N2; compressed gas; cylinders; explosion suppres-san
26、t; fire suppressant; handling; IG-55; Argonitet; storage;transportFIG. 1 IG-55 Pressure/Temperature Curve (200 Bar)D7324072ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expr
27、essly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revise
28、d, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may
29、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.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).FIG. 2 IG-55 Pressure/Temperature Curve (300 Bar)D7324073
