GB/T 7598-2008 in English
VALIDDetermination of water-soluble acid in transformer oils in service
- Issued on:2008-09-24
- Implemented on:2009-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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本标准代替GB/T 7598-1987《运行中变压器油、汽轮机油水溶性酸测定法(比色法)》。
本标准规定了运行中变压器油的水溶性酸的测定方法。
本方法适用于运行中变压器油,其他矿物油的水溶性酸的测定可参照执行。
本标准与GB/T 7598-1987的主要技术差异为:
———将本标准的名称修订为《运行中变压器油水溶性酸测定法》。
———修改了本标准的适用范围。
———对原标准中的pH 标准缓冲溶液、pH 标准比色溶液和指示剂增加了有效使用期。
———对原标准中的指示剂做了修订。
———对原标准增加了pH 标准比色溶液的配制步骤。
———对原标准中的比色步骤做修订。
———对比色法的精密度进行了修订。
———将原标准内容进行了适当的重新编排。
———在附录中增加了酸度计法和该方法的精密度。
Scope
This standard specifies the determination method of water-soluble acid in transformer oil in operation. This method is applicable to transformer oil in operation, and the determination of water-soluble acids in other mineral oils can be carried out by reference.

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