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This specification covers the requirements for HFC-125 (pentafluoroethane, C2HF5) as a fire-fighting medium. It does not however address the fire-fighting equipment or hardware that employs HFC-125, the conditions of employing such equipment like hand helds, fixed installations, etc., or the storage and transportation of HFC-125. Samples of HFC-125 taken in the liquid phase shall be taken from filled containers in accordance to a specific method and shall be tested for quality conformance using gas chromatography, sodium hydroxide titration, and Karl Fischer methods. HFC-125 shall conform to the purity, acidity, water content, nonvolatile residue, presence of fixed gases in the vapor phase, and suspended matter or sediment requirements when tested by the appropriate test methods.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the requirements for HFC-125 as a fire–fighting medium.
1.2 This specification does not address the fire–fighting equipment or hardware that employs HFC-125 or the conditions of employing such equipment, for example, hand helds, fixed installations, etc.
1.3 This specification does not address the storage or transportation of HFC-125. Storage, handling, and transportation issues are addressed in Practice D6268.
1.4 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.5 The following safety hazards caveat pertains to the test methods portion, Section 6, of this specification. 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in 4.3.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D6268 Practice for Handling, Transportation, and Storage of HFC-125, Pentafluoroethane (C2HF5)
D6806 Practice for Analysis of Halogenated Organic Solvents and Their Admixtures by Gas Chromatography
ISO StandardsISO3427 Gaseous Halogenated Hydrocarbons (Liquefied Gases) - Taking a Sample Available from American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.
American Society of Refrigeration EngineersASREStandard34, Designation of Refrigerants Available from American Society of Refrigeration Engineers, Refrigeration Engineering 65, 49 (1957).
ARI Standards2008AppendixC Analytical Procedures for ARI Standard 700-2006 Available from the Air Conditioning, Heating and Refrigeration Institute, 4100 North Fairfax Drive, Suite 200, Arlington, VA, 22203-1678.
UNSPSC Code 12352101(Organic halogenated compounds); 12191502(Aliphatic solvents)