標準號：SIS SS-ISO 4257-1990
中文標準名稱：液化石油氣．取樣法
英文標準名稱：Liquefied petroleum gases — Method of sampling
發布日期：1990/6/6 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This International Standard specifies the procedure to be used for obtaining samples of non-refrigerated liquefied petroleum gases (LPG) such as propane, butane or mixtures thereof. It is suitable for sampling into containers to provide samples for laboratory testing of products covered by ISO 9162.Although this method can be used to provide samples for com-positional analysis by ISO 7941, it is strongly recommended that alternative apparatus, such as a variable-volume container, be used to minimize compositional changes that may occur. Development of an appropriate ISO method is under way.