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1.1 This method covers the determination of the temperature at which liquids and solids will spontaneously ignite. These materials must ignite without application of spark or flame in a high-pressure oxygen-enriched environment.
1.2 This method is intended for use at pressures of 2.1 to 20.7 MPa (300 to 3000 psi). The pressure used in the description of the method is 10.3 MPa (1500 psi). The method, as described, is for liquids or solids with ignition temperature in the range from 60 to 425°C (140 to 800°F).
1.3 This method is for high-pressure pure oxygen. The method may be used in atmospheres from 0.5 % to 100 % oxygen.
1.4 An apparatus suitable for these requirements is described. This method could be applied to higher pressures and materials of higher ignition temperature. If more severe requirements or other oxidizers than those described are desired, care must be taken in selecting an alternative safe apparatus capable of withstanding the conditions.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
G93 Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments
Federal SpecificationBB-O-925 Oxygen, Technical, Gas and Liquid
Other DocumentsCompressed Gas Association Booklets G-1 and G-4.1
ICS Number Code 13.220.40 (Ignitability and burning behaviour of materials and products); 13.230 (Explosion protection)
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ASTM G72-82(1996)e1, Standard Test Method for Autogenous Ignition Temperature of Liquids and Solids in a High-Pressure Oxygen-Enriched Environment, ASTM International, West Conshohocken, PA, 2001, www.astm.orgBack to Top