标准摘要
[中文适用范围]： 本标准规定了从沸点高于200℃的石油及相关产品中制备供试品的两种程序，可用于测定3mg/kg～1000mg/kg范围内的总水含量。 该方法适用于未使用和使用过的润滑油、非水液压油和高沸点溶剂。 这些程序生成的测试部分适用于标准卡尔费休水分含量测定，例如 ISO 6296（参见参考文献中的 [1]）和 ISO 12937（参见参考文献中的 [2]）中描述的那些。 [外文原描述]： ISO 20764:2003 specifies two procedures for the preparation of test portions from petroleum and related products boiling above 200 degrees Celsius, which can then be used for the determination of total water content within the range of 3 mg/kg to 1 000 mg/kg. The method is applicable to unused and used lubricating oils, non-aqueous hydraulic fluids and high-boiling solvents. The test portions generated by these procedures are suitable for standard Karl Fischer water-content determinations, such as those described in ISO 6296 and ISO 12937.
英文名称Petroleum and related products — Preparation of a test portion of high-boiling liquids for the determination of water content — Nitrogen purge method