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Standard
| GB/T 18609-2011 Determination of acid number of crude oil by potentiometric titration (English Version) |
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Detail of GB/T 18609-2011
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Introduction of GB/T 18609-2011
本标准规定了采用电位滴定法测定原油酸值的方法。
本标准适用于测定能够溶解于甲苯和异丙醇混合溶剂中的原油中的酸性组分。这些酸性组分在水中的离解常数要大于10-9;离解常数小于10-9的极弱酸不产生干扰。水解常数大于10-9的盐类将会参与反应。酸值的测定范围为0.1mg/g~150mg/g。
本标准适用于测定水的质量分数小于0.5%的原油。
Contents of GB/T 18609-2011