ASTM D1275-15
Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
- Standard No.
- ASTM D1275-15
- Release Date
- 2015
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D1275-24
- Latest
- ASTM D1275-24
- Scope
3.1 In most of their uses, insulating liquids are continually in contact with metals that are subject to corrosion. The presence of elemental sulfur or corrosive sulfur compounds will result in deterioration of these metals and cause conductive or high resistive films to form. The extent of deterioration is dependent upon the quantity and type of corrosive agent and time and temperature factors. Detection of these undesirable impurities, even though not in terms of quantitative values, is a means for recognizing the hazard involved.
3.2 Two methods are provided, one for copper corrosion and one for silver corrosion. Copper is slightly less sensitive to sulfur corrosion than silver but the results are easier to interpret and less prone to error. The silver corrosion procedure is provided especially for those users who have applications where the insulating liquid is in contact with a silver surface.
1.1 This test method describes the detection of corrosive sulfur compounds (both inorganic and organic) in electrical insulating liquids.
1.2 New and in-service insulating liquids may contain elemental sulfur or sulfur compounds, or both, that cause corrosion under certain conditions of use. This test method is designed to detect the presence of, or the propensity to form, free (elemental) sulfur and corrosive sulfur compounds by subjecting copper or silver to contact with an insulating liquid under prescribed conditions.
1.3 The values stated in SI units are to be regarded as the standard. Inch-pound units are included for informational purposes.
1.4 This standard does not purport to address 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.
ASTM D1275-15 Referenced Document
- ANSI B74.10 Specifications for Grading of Abrasive Microgrits
- ASTM D130 Standard Test Method for Detection of Copper Corrosion from Petroleum Products by the Copper Strip Tarnish Test
- ASTM D923 Standard Practices for Sampling Electrical Insulating Liquids
- ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
ASTM D1275-15 history
- 1970 ASTM D1275-24 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids (Standard + Redline PDF Bundle)
- 2015 ASTM D1275-15 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
- 2006 ASTM D1275-06 Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils
- 2003 ASTM D1275-03 Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils
- 1996 ASTM D1275-96a Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils
