ASTM-D3612:2002 Edition

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D3612-02 Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography

Published By	Publication Date	Number of Pages
ASTM	2002	22

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Categories: 29.040.10 - Insulating oils, ASTM

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ASTM D3612-02

Historical Standard: Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography

ASTM D3612

Scope

1.1 This test method covers three procedures for extraction and measurement of gases dissolved in electrical insulating oil having a viscosity of 20 cSt (100 SUS) or less at 40°C (104°F), and the identification and determination of the individual component gases extracted. Other methods have been used to perform this analysis.

1.2 The individual component gases that may be identified and determined include:

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements see 6.1.8, 30.2.2 and 30.3.1.

Keywords

capillary columns; combustible gases; dissolved gases; gases; headspace; insulating oil; oil; transformer oil

ICS Code

ICS Number Code 29.040.10 (Insulating oils)

DOI: 10.1520/D3612-02

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus Sampling Method A—Vacuum Extraction
3	FIG. 1 FIG. 2
4	Preparation of Apparatus Procedure FIG. 3
5	Apparatus Reagent and Materials
6	Calibration Procedure FIG. 4
7	Calculation Report Precision and Bias TABLE 1
8	Method B—Stripper Column Extraction Apparatus Reagent and Materials
9	FIG. 5
10	Calibration (Gases) Efficiency Determination Procedure for Direct Injection Calculation Report Precision and Bias
11	TABLE 2 TABLE 3
12	Method C—Headspace sampling FIG. 6
13	Apparatus Chemicals
14	Procedure FIG. 7 TABLE 4 TABLE 5
15	FIG. 8
16	Determination of Partition Coefficients TABLE 6
17	Calculation Report Precision and Bias Keywords
18	A1. PREPARATION OF SMALL QUANTITIES OF GAS-IN-OIL STANDARDS (Mandatory Information—Method B) A1.1 Calibration Apparatus A1.2 Procedure TABLE 7
19	A2. PREPARATION OF LARGE QUANTITIES OF GAS-IN-OIL STANDARDS (Mandatory Information—Method B) A2.1 Apparatus A2.2 Materials A2.3 Preparation of Apparatus FIG. A2.1 FIG. A2.2
20	A2.4 Procedure A2.5 Calculation A2.6 Reliability FIG. A2.3
21	X1. PRECISION AND BIAS OF GAS RATIOS USED IN FAULT DIAGNOSIS IN OIL-INSULATED ELECTRICAL EQUIPMENT X1.1 FIG. X1.1