ASTM D2668红外线吸收法测定电绝缘油中2,6-二叔丁基对甲酚和2,6-二叔丁基对苯酚的标准试验方法
日期:2012-02-10 11:14
unt remaining after oxidation has reduced its concentration. The test is also suitable for manufacturing control and specification acceptance.
When an infrared spectrum is obtained of an electrical insulating oil inhibited with either of these compounds there is an increase in absorbance of the spectrum at several wavelengths (or wavenumbers). 2,6 ditertiary-butyl paracresol produces pronounced increases in absorbance at 2.72 m (3650 cm1), and 11.63 m (860 cm1). 2,6 ditertiary-butyl phenol produ
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