ASTM D3612-02(2009)
Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography

Standard No.

ASTM D3612-02(2009)

Release Date

2009

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D3612-02(2017)

Latest

ASTM D3612-02(2017)

Scope

Oil and oil-immersed electrical insulation materials may decompose under the influence of thermal and electrical stresses, and in doing so, generate gaseous decomposition products of varying composition which dissolve in the oil. The nature and amount of the individual component gases that may be recovered and analyzed may be indicative of the type and degree of the abnormality responsible for the gas generation. The rate of gas generation and changes in concentration of specific gases over time are also used to evaluate the condition of the electric apparatus.

Note 18212;Guidelines for the interpretation of gas-in-oil data are given in IEEE C57.104.

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:

	Hydrogen—H2
	Oxygen—O2
	Nitrogen—N2
	Carbon monoxide—CO
	Carbon dioxide—CO2
	Methane—CH4
	Ethane—C2H6
	Ethylene—C2H4
	Acetylene—C2H2
	Propane—C3H8
	Propylene—C3H6

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.

ASTM D3612-02(2009) Referenced Document

• ASTM D2140 Standard Test Method for Carbon-Type Composition of Insulating Oils of Petroleum Origin
• ASTM D2300 Standard Test Method for Gassing of Electrical Insulating Liquids Under Electrical Stress and Ionization (Modified Pirelli Method)*， 2024-04-19 Update
• ASTM D2779 Standard Test Method for Estimation of Solubility of Gases in Petroleum Liquids*， 2020-11-01 Update
• ASTM D2780 Standard Test Method for Solubility of Fixed Gases in Liquids
• ASTM D3613 Standard Practice for Sampling Insulating Liquids for Gas Analysis and Determination of Water Content
• ASTM D4051 Standard Practice for Preparation of Low-Pressure Gas Blends
• ASTM E260 Standard Practice for Packed Column Gas Chromatography*， 2019-09-01 Update

ASTM D3612-02(2009) history

• 2017 ASTM D3612-02(2017) Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography
• 2009 ASTM D3612-02(2009) Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography
• 2002 ASTM D3612-02e1 Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography
• 2002 ASTM D3612-02 Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography
• 2001 ASTM D3612-01 Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography
• 1996 ASTM D3612-96 Standard Test Method for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography