1 - AS 1767.2.4-1999 INSULATING LIQUIDS - TEST METHODS - DETECTION AND DETERMINATION OF SPECIFIED ANTI-OXIDANT ADDITIVES IN ....
4 - PREFACE
5 - CONTENTS
7 - 1. Scope
7 - SECTION I – METHODS FOR THE DETECTION OF ANTI-OXIDANT ADDITIVES
7 - 2. Detection of 2.6-di-tert-butyl-paracresol (DBPC) by thin layer chromatography
7 - 2.1 Summary of the method
7 - 2.2 Reagents
7 - 2.3 Equipment
7 - 2.4 Procedure
8 - 3. Detection of n-phenyl ... naphtylamine (PAN) and alpha-phenyl .. naphtylamine (PBN) by thin layer chromatography
8 - 3.1 Summary of the method
8 - 3.2 Reagents
8 - 3.3 Equipment
8 - 3.4 Procedure
9 - 4. Detection of anthranilic acid in new insulating oils by thin layer chromatography
9 - 4.1 Summary of the method
9 - 4.2 Reagents
9 - 4.3 Equipment
9 - 4.4 Procedure
10 - SECTION II – METHODS FOR THE DETERMINATION OF ANTI-OXIDANT ADDITIVES
10 - 5. Determination of 2.6-di-tert-butyl-paracresol
10 - 5.1 Quantitative determination by infra-red spectrophotometry
10 - 5.1.1 Summary of the method
10 - 5.1.2 Reagents
10 - 5.1.3 Equipment
10 - 5.1.4 Sample condition
11 - 5.1.5 Calibration
11 - 5.1.6 Reference oil
12 - 5.1.7 Procedure
12 - 5.1.8 Calculation
12 - 5.1.9 Precision
13 - 5.2 Semi-quantitative determination by thin layer chromatography
13 - 5.2.1 Summary of the method
13 - 5.2.2 Reagents
13 - 5.2.3 Equipment
13 - 5.2.4 Procedure
14 - 5.2.5 Results
14 - 6. Determination of n-phenyl--beta-naphtylamine by spectrophotometry
14 - 6.1 Summary of the method
15 - 6.2 Reagents
15 - 6.3 Equipment
15 - 6.4 Procedure
15 - 6.5 Calculation
15 - 6.6 Lower limit of detection
17 - APPENDIX ZZ - VARIATIONS TO IEC 60666 FOR APPLICATION IN AUSTRALIA