ISO 4256-1996 液化石油气 蒸气压的测定 LPG法

标准号：ISO 4256-1996
中文标准名称：液化石油气 蒸气压的测定 LPG法
英文标准名称：Liquefied petroleum gases - Determination of gauge vapour pressure - LPG method
标准类型：E20
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：E20
国际标准分类号：75.160.20
适用范围：This International Standard describes a method for the determination of gauge vapour pressures of liquefied petroleum gas products (see clause 3) at temper-atures within the approximate range of 35 ℃ to 70 ℃. NOTES 1 Information on the vapour pressure of liquefied petro-leum gases is required for the selection of properly de-signed storage vessels, shipping containers and customer utilization equipment, to ensure the safe handling of these products, and to ensure that maximum operating design pressures are not exceeded under the foreseen ambient operating conditions. 2 The vapour pressure of liquefied petroleum gases is an indirect measure of the lowest temperature at which initial vaporization can be expected to occur. It may also be con-sidered to be an indirect indication of the most volatile con-stituent present in the product.