Standard Test Method for Analysis of 2,6-Ditertiary-Butyl Para-Cresol and 2,6-Ditertiary-Butyl Phenol in Insulating Liquids by Gas Chromatography


Importancia y uso:

4.1 In new electrical insulating oil, this test method provides a quantitative measure of the amounts of 2,6-ditertiary-butyl para-cresol and 2,6-ditertiary-butyl phenol that have been added to the oil. In a used oil, the test measures the amount of these inhibitors remaining in the oil. This test method is suitable for manufacturing control, specification acceptance, and service evaluation.

4.2 This test method is used to separate, identify, and quantify the inhibitors with minimal interference and matrix effects.

4.3 This test method has also been used successfully to determine the inhibitor concentrations in other insulating liquids such as esters and high-temperature hydrocarbons.

Subcomité:

D27.03

Referida por:

D8180-23, D5222-23, D3487-24, D0117-22

Volúmen:

10.03

Número ICS:

29.040.10 (Insulating oils)

Palabras clave:

2,6-ditertiary-butyl para-cresol; 2,6-ditertiary-butyl phenol; dbp; dbpc; inhibitor; mineral oil; transformer oil ;

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Norma
D4768

Versión
11(2019)

Estatus
Active

Clasificación
Test Method

Fecha aprobación
2019-12-01