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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Copper is slightly less sensitive to sulfur corrosion than silver but the results are easier to interpret and less prone to error. If the oil visibly darkens during testing then d175 likely oxygen has entered the vessel and oxidized the oil. Do not use compressed air or an inert gas to dry the copper strip.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Current edition approved March 1, This standard has been adopted for use by government agencies to replace Method of Federal Test Method Standard No.
Wipe the strip with fresh pads of cotton and subsequently handle only with stainless steel forceps do not touch with the? The extent of deterioration is dependent upon the quantity and type of corrosive agent and time and temperature factors.
ASTM D1275 – 15
Clean all metal dust and abrasive from the strip, using successive clean cotton pads until a fresh pad remains x1275. Graphite or lusterless black c. Rub in the direction of the long axis of the strip. Link to Active This link will always route to the current Active version of the standard. Inch-pound units are included for informational purposes.
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
Bubble nitrogen through the oil in the? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Bubble nitrogen through the oil in the bottle by means of a 1? Inch-pound units are included for informational purposes. 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. Transparent black, dark gray or brown with peacock green barely showing b.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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.
Flasks of such capacity are required in order to allow sufficient space for expansion of the oil. When the oil in the? The extent of deterioration is dependent upon the quantity and type of corrosive agent and time and temperature factors. Preparation of Apparatus 7. Lubricate astj ground-glass stopper with a small amount of the test specimen. Carefully take the copper strip from the?
The presence of corrosive sulfur compounds will result in deterioration of these metals. Originally approved in Summary of Test Methods 3. Magenta overcast on d175 strip b. The silver corrosion procedure is provided especially for those users who have applications where the insulating liquid is in contact with a silver wstm.
NOTE 2—It has been found convenient to polish a larger piece of copper from which, after the? Note 2 and remove blemishes from surfaces with the grit silicon carbide paper.
Precision aztm Bias Quickly screw in the PFTE plug equipped with? A description of the tarnish levels is provided in Table 2 for reference only. Polished Strip 1 Slight tarnish Historical Version s – view previous versions of standard. 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.
Method A is the one that has been in place since