ASTM D – Designation: D – 06 /98 Standard Test Method for Corrosive Sulfur in Elec. ASTM D Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids. standard by ASTM International, 11/15/ View all product details. At that time ASTM D was the only method under the jurisdiction of ASTM Committee D-. 27 on Electrical Insulating Liquids and Gases. The method, which .

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Bubble nitrogen through the oil in the? In the United States, abrasive papers are classi? Rinse with tap water, then with distilled water, and dry in an oven.

ASTM D – 15 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids

Copper is slightly less sensitive to sulfur corrosion than silver but the results are easier to interpret and less prone to error. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

NOTE 4—The corrosive effects of unstable sulfur compounds present in the oil are reduced when aged under strong oxidizing conditions such as when oxygen is present. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend. asmt

A number in parentheses indicates the year of last reapproval. Description Unable to reproduce upon aging so no description is f1275 a. Inch-pound units are included for informational purposes. Preparation of Apparatus 7.

Do not use pressurized air to dry copper strip. Quickly screw in the PFTE plug equipped with? If a specimen is borderline or unclear, take a clean laboratory tissue and drag it across the surface with heavy pressure; if any of the deposited material is removed, the deposit is corrosive and is to be reported as such. Summary of Test Methods 3. Transparent black, dark gray or brown with peacock green barely showing b.

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Lubricate the ground-glass stopper with a small amount of the test specimen.

ASTM D – 15 – Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids

Place the bent copper strip standing on its long edge so that no? Light orange, almost the same as freshly polished strip b.

A circulating hot-air oven is preferred. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Precision and Bias Awtm with red and green showing peacockbut no gray a. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Interpretation of Results Brassy or gold a. Strips may be stored in sulfur-free acetone at this point for future use.

Detection of these undesirable impurities, even though not in terms of quantitative values, is a means for recognizing the hazard involved. Flasks of such capacity are required in order to allow sufficient space for expansion of the oil.

Bubble nitrogen through the oil in the bottle by means of a 1?

ASTM D1275 – 15

Do not use compressed air or an inert gas ast, dry the copper strip. This standard has been adopted for use by government agencies to replace Method of Federal Test Method Standard No.

This is the preferred method. Method A is the one that has been in place since Polished Strip 1 Slight tarnish The extent of deterioration is dependent upon the quantity and type of corrosive agent and time and temperature factors. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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When the oil in the? Glossy or jet black NOTE 1—It should be noted that grit silicon carbide paper and mesh silicon carbide grains have particle sizes of about the same size 63? Current edition approved March 1, The silver corrosion procedure is provided especially for those users who have applications where the insulating liquid is in contact with a silver surface. 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 d11275 contact with oil under prescribed conditions.

The extent of asttm is dependent upon the quantity and type of corrosive agent and time and temperature factors.

Originally approved in 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. A description of the tarnish levels is provided in Table 2 for reference only.

In these cases, the test procedure has become compromised and must be repeated. If the oil visibly darkens during testing then most likely oxygen has entered the vessel and oxidized the oil. Carefully take the copper strip from the? Abrasive powders are classi? Last previous edition approved in as D — 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.