ASTM D1275 PDF

ASTM D1275 PDF

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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Method B is more rigorous and the preferred method.

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

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.

Rub in the direction of the long axis of the strip.

The silver corrosion procedure is provided especially for those users who have applications where the insulating liquid is in contact with a silver surface. Detection of these undesirable impurities, even though not in terms of quantitative values, is a means for recognizing the hazard involved.

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

Summary of Test Methods 3. Last previous edition approved in as D — A superscript epsilon e indicates an editorial change since the last revision or reapproval.

Quickly screw in the PFTE plug equipped with? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Transparent black, dark gray or brown with peacock green barely showing b. Interpretation of Results 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.

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A number in parentheses indicates the year of last reapproval. This is the preferred method. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.

Graphite or lusterless black c. When the oil in the? Wipe the strip with fresh pads of cotton and subsequently handle only with stainless steel forceps do not touch with the?

It is imperative to keep the? 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. Magenta overcast on brassy strip b. Bottles of such capacity and design are required in order to allow sufficient space for expansion of the oil and eliminate intrusion from atmospheric gases.

In these cases, the test procedure has become compromised and must be repeated. Originally approved in Multicolored with red and green showing peacockbut no gray a. Note 2 and remove blemishes from surfaces with the grit silicon carbide paper. Do not use pressurized air to dry copper strip.

Historical Version s – view previous versions of standard. Precision and Bias Glossy or jet black This standard has been adopted for use by government agencies to replace Method of Federal Test Method Standard No. 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. 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.

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A description of the tarnish levels is provided in Table 2 for reference only. Bubble nitrogen through the oil in the bottle by means of a 1? Abrasive powders are classi? Multicolored with lavender blue or silver, or both, overlaid on claret red d.

d1257 Bubble nitrogen through the oil in the? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

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

Do not use compressed air or an inert gas to dry the copper strip. Your comments are invited either for revision asgm this standard or for additional standards and should be addressed to ASTM International Headquarters.

Method A is the one that has been in place since