ASTM D1267 Test Method for Gage Vapor Pressure of Liquefied Petroleum (LP) Gases (LP-Gas Method)
1. Scope
1.1 This test method covers the determination of the gage vapor pressures of liquefied petroleum gas products (Warning - Flammable gas. Harmful when inhaled.) at temperatures of 37.8°C (100°F) up to and including a test temperature of 70°C (158°F).
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 1.1 and Annex A2.
2. Referenced Documents
2.1 ASTM Standards:
D323 Test Method for Vapor Pressure ofPetroleum Products (Reid Method)
D1265 Practice for Sampling Liquefied Petroleum (LP) Gases, Manual Method
3. Terminology
3.1 Definitions:
3.1.1 liquefied petroleum gases, n - narrow boiling range hydrocarbon mixtures consisting mainly of propane or propylene, or both, and butanes or butylenes, or both, plus limited amounts of other hydrocarbons and naturally occurring non-hydrocarbons.
3.1.2 vapor pressure, n - the pressure exerted by the vapor of a liquid when in equilibrium with the liquid.
