1.1 本试验方法涵盖原油中近似氯化物（盐）浓度的测定。浓度范围为3.5 mg/kg至500 毫克/千克或1.0 磅/1000桶至150桶 lb/1000 bbl（PTB），作为氯化物浓度/原油体积。 1.2 本试验方法测量由于常见氯化物（如钠、钙和镁）的存在而导致的原油电导率。原油中也可能存在其他导电材料。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3.1 例外情况- 可接受的浓度单位为克/米 3. 或PTB（磅/千桶）。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关特定警告声明，请参阅 7.3 , 7.4 和 7.11 . 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法用于确定原油的近似氯化物含量，了解该含量对决定原油是否需要脱盐很重要。 还可以评估工艺除盐器的效率。 5.2 原油中残留的过量氯化物通常会导致炼油装置中的腐蚀速率加快，并对这些装置中使用的催化剂产生不利影响。 5.3 该试验方法为确定原油中氯化物的近似含量提供了一种快速方便的方法，对原油加工厂有用。

1.1 This test method covers the determination of the approximate chloride (salts) concentration in crude oil. The range of concentration covered is 3.5 mg/kg to 500 mg/kg or 1.0 lb/1000 bbl to 150 lb/1000 bbl (PTB) as chloride concentration/volume of crude oil. 1.2 This test method measures conductivity in the crude oil due to the presence of common chlorides, such as sodium, calcium, and magnesium. Other conductive materials may also be present in the crude oil. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1 Exception— Acceptable concentration units are g/m 3 or PTB (lb/1000 bbl). 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.3 , 7.4 , and 7.11 . 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is used to determine the approximate chloride content of crude oils, a knowledge of which is important in deciding whether or not the crude oil needs desalting. The efficiency of the process desalter can also be evaluated. 5.2 Excessive chloride left in the crude oil frequently results in higher corrosion rates in refining units and also has detrimental effects on catalysts used in these units. 5.3 This test method provides a rapid and convenient means of determining the approximate content of chlorides in crude oil and is useful to crude oil processors.