IS 1448 Pt.72-1968

标准号：IS 1448 Pt.72-1968
发布日期：1969/1/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This method is intended to determine the volatility of the various types of liquefied petroleum gases ( LPG) as indicated by the approximate amount of higher boiling constituents present.1.1.1 The test results, when properly related to the observed vapour pressures and densities of the product, may be used to indicate the approxi-mate concentration of butanes in the propane type LPG, and pentanes in the butane-propane mixture type and butane type LPG. Presence of hydrocarbon compounds (less volatile than those of which the LPG product is primarily composed ) is indicated by an increase in the temperature at the 95 percent evaporated point.