ASTM D4768 for 2,6-Ditertiary-Butyl Para-Cresol and 2,6-Ditertiary-Butyl Phenol
ASTM D4768 Standard Test Method for Analysis of 2,6-Ditertiary-Butyl Para-Cresol and 2,6-Ditertiary-Butyl Phenol in Insulating Liquids by Gas Chromatography
11. Report
11.1 Report the following information:
11.1.1 Type and amount of each inhibitor found, and
11.1.2 Total amount of inhibitor as the sum of the individual inhibitors found.
12. Precision and Bias
12.1 The single operator coefficient of variation has been found not to exceed 11 % for inhibitor content between 0.06 and 0.45 %. Therefore, the results of two tests conducted on the same sample by the same operator using the same equipment should not differ from each other by more than 30.8 % of the average of the two tests.
13. Keywords
13.1 2,6-ditertiary-butyl para-cresol; 2,6-ditertiary-butyl phenol; dbp; dbpc; inhibitor; mineral oil; transformer oil
