ASTM D1275-06
(Test Method)Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils (Withdrawn 2015)
Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils (Withdrawn 2015)
SIGNIFICANCE AND USE
In most of their uses, insulating oils are continually in contact with metals that are subject to corrosion. The presence of corrosive sulfur compounds will result in deterioration of these metals. 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.
SCOPE
1.1 This test method describes the detection of corrosive sulfur compounds (both inorganic and organic) in electrical insulating oils of petroleum origin.
1.2 New and in-service mineral insulating oils may contain substances 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 to contact with oil under prescribed conditions.
1.3 Two methods (A and B) have been introduced where historically there has only been one. Method A is the one that has been in place since 1953. Method B is more rigorous and the preferred method.
1.4 The values stated in SI units are to be regarded as the standard. Inch-pound units are included for informational purposes.
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.
WITHDRAWN RATIONALE
This test method describes the detection of corrosive sulfur compounds (both inorganic and organic) in electrical insulating oils of petroleum origin.
Formerly under the jurisdiction of Committee D27 on Electrical Insulating Liquids and Gases, this test method was withdrawn in January 2015 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D1275 −06
315/98
Standard Test Method for
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Corrosive Sulfur in Electrical Insulating Oils
This standard is issued under the fixed designation D1275; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been adopted for use by government agencies to replace Method5328-2 of Federal Test Method Standard No. 791b.
This standard was adopted as an ASTM-IP Standard.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2.2 Other Document:
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ANSI B74.10 Grading of Abrasive Microgrits
1.1 This test method describes the detection of corrosive
sulfur compounds (both inorganic and organic) in electrical
3. Summary of Test Methods
insulating oils of petroleum origin.
3.1 MethodA—250 mLof oil is aged in a sealed flask for 19
1.2 New and in-service mineral insulating oils may contain
h at 140°C in the presence of a copper strip.
substancesthatcausecorrosionundercertainconditionsofuse.
3.2 Method B—220 mL of oil is aged in a sealed heavy-
This test method is designed to detect the presence of, or the
walled bottle for 48 h at 150°C in the presence of a copper
propensity to form, free (elemental) sulfur and corrosive sulfur
strip. This is the preferred method.
compounds by subjecting copper to contact with oil under
prescribed conditions.
4. Significance and Use
1.3 Two methods (A and B) have been introduced where
4.1 In most of their uses, insulating oils are continually in
historically there has only been one. Method A is the one that
contact with metals that are subject to corrosion. The presence
has been in place since 1953. Method B is more rigorous and
of corrosive sulfur compounds will result in deterioration of
the preferred method.
these metals. The extent of deterioration is dependent upon the
quantity and type of corrosive agent and time and temperature
1.4 The values stated in SI units are to be regarded as the
factors. Detection of these undesirable impurities, even though
standard. Inch-pound units are included for informational
purposes. not in terms of quantitative values, is a means for recognizing
the hazard involved.
1.5 This standard does not purport to address the safety
concerns, if any, associated with its use. It is the responsibility
5. Apparatus
of the user of this standard to establish appropriate safety and
5.1 Bath—A hot-air oven or oil bath provided with suitable
health practices and determine the applicability of regulatory
means of heating to, and controlling at 140 or 150 6 2°C. A
limitations prior to use.
circulating hot-air oven is preferred.
2. Referenced Documents
5.2 Flasks—Narrow-mouth, 250-mL, ground-glass stop-
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pered flasks, of chemically resistant glass, capable of holding
2.1 ASTM Standards:
270 to 280 mLwhen filled completely to the stopper. Flasks of
D130 Test Method for Corrosiveness to Copper from Petro-
such capacity are required in order to allow sufficient space for
leum Products by Copper Strip Test
expansion of the oil.
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5.3 Bottles —Heavy walled, 250 mL, bottles of chemically
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This test method is under the jurisdiction of ASTM Committee D27 on
resistant glass constructed with necks to receive a PTFE
Electrical Insulating Liquids and Gases and is the direct responsibility of Subcom-
mittee D27.06 on Chemical Test.
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Current edition approved March 1, 2006. Published March 2006. Originally Available from American National Standards Institute, 25 W. 43rd St., 4th
approved in 1953. Last previous edition approved in 2003 as D1275 – 03. DOI: Floor, New York, NY 10036, USA.
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10.1520/D1275-06. The sole source of supply of the bottles and PFTE screw plugs known to the
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or committee at this time isAce Glass, P.O. Box 688,Vineland, NJ 08362, USA. If you
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM are aware of alternative suppliers, please provide this information to ASTM
Standards volume information, refer to the standard’s Document Summary page on International Headquarters. Your comments will receive careful consideration at a
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the ASTM website. meeting of the responsible technical committee, which you may attend.
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D1275 − 06
TABLE 1 Copper Strip Classifications
threaded plug equipped with a fluoro-elastomer o-ring. Bottles
of such capacity and design are required in order to allow Classification Description
Noncorrosive Orange, red, lavend
...
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