ASTM D2668-07(2021)
Действует
Standard Test Method for 2,6-<emph type="bold"><emph type="ital">di-tert</emph></emph >-Butyl-<emph type="bold"><emph type="ital"> p</emph></emph>-Cresol and 2,6-<emph type="bold"><emph type="ital">di-tert</emph></emph>-Butyl Phenol in Electrical Insulating Oil by Infrared Absorption
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