TEST METHOD FOR VOLATILITY OF LIQUEFIED PETROLEUM (LP) GASES (SECOND REVISION)
1.1 This test method is a measure of the relative purity of
the various types of liquefied petroleum (LP) gases and helps
to ensure suitable volatility performance. The test results, when
properly related to vapor pressure and density of the product,
can be used to indicate the presence of butane and heavier
components in propane type LP-gas, and pentane and heavier
components in propane-butane and butane type fuels. The
presence of hydrocarbon compounds less volatile than those of
which the LP-gas is primarily composed is indicated by an
increase in the 95 % evaporated temperature.
1.2 When the type and concentration of higher boiling
components is required, chromatographic analysis should be
used.
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
1.4 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.
