ASTM D STANDARD TEST METHODS FOR DETERMINATION OF GEL CONTENT AND SWELL RATIO OF CROSSLINKED ETHYLENE PLASTICS. Differential Scanning. Calorimetry (ASTM. D). Dilute Solution. Viscometry ( ASTM. D, F). Fatigue (ASTM E). Swelling Analysis. (ASTM D). Tue, 30 Oct GMT astm d standard test methods pdf – Test. Method B differs from the referee test method only in sample preparation; that is.
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Hence, determination of the gel content provides a means of both controlling the process and rating the quality of?
They have been particularly useful for electrical insulations since specimens may be selected from those portions of the insulation most susceptible to insufficient crosslinking.
D — 01 A—Identi?
ASTM D2765 – 16
The methods described herein are applicable to crosslinked ethylene plastics of c2765 densities, including those containing fillers, and all provide corrections for the inert fillers present in some of those compounds.
Note 1-ISO is similar to this test, but is not equivalent. Such extraction test methods are described herein. Hence, determination of the gel content provides a means of both controlling the process and rating the quality of finished products.
Weigh this pouch W1. If the system is? Check the effectiveness of the d7265 before starting the tests. Determination of the g In the event of excessive inhalation, seek fresh clean air.
Calculation See Note 11 for Derivation The principles of Fold over the open d27765 of the pouch and staple the edge to form a cage. Both measurements are obtained in one test.
The first of these differs from the referee test method only in sample preparation; that is, it requires use of shavings taken at selected points in cable insulation, for example, rather than the ground sample required by the referee test method. They have been particularly useful for electrical insulations since specimens may be selected from those portions of the insulation most susceptible to insufficient crosslinking.
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. Such extraction test methods are described herein. If the system is un? Link to Active This link will always route to the current Active version of the standard. For Size 2 AWG and smaller, the dimensions should be proportionately less.
Warning—The following explanations of r and R Extract the specimen for 6 h in decahydronaphthalene or for 12 h in xylenes. Test Method B differs from the referee test method only in sample asrm that is, it requires use of shavings taken at selected points in cable insulation, for example, rather than the ground sample required by the referee test method.
Summary of Test Methods 4.
ASTM.D Determination of Gel content and swell ratio of crosslinked ethylene plastics_百度文库
Your d27765 will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If necessary, place a weight on the jar or clamp it to hold it in place. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
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. A bench-top laboratory mill4,5 is satisfactory, although any procedure which will produce a sample of the required? The inch-pound units in parentheses are for information only.
Weigh the pouch and specimen W2. If the compound absorbs moisture, cool the specimen in a desiccator before weighing. Cool cold trap with dry ice and acetone to catch and condense xylene vapor. If necessary, they may be cut into two or three pieces crosswise so that they can be completely submerged in the solvent. Specific precautionary statements are given in Sections 6, 10, and The fritted disk is extra-coarse with fused edge; Kontesmm diameter or equivalent.
Excessive inhalation of the vapors may cause dizziness or headache, or both. Low swell ratios indicate a more tightly bound structure. Summary of Test Method For one or two determinations at one time, a 2 mL?
Increasing this period to 72 h had no signi? They are applicable to crosslinked ethylene plastics of all densities, including those containing?
Users of this test method should apply the principles outlined in Practice E to generate data speci? A small wire, attached to the cage and extending through the re?
NOTE 9—The size of the swollen test specimen dictates the size of the weighing bottle to be used. Results obtained from such specimens are of limited value. If there are no material specifications, then the default conditions apply. In high-voltage cable employing strand shielding tapes or compounds, the strip should be shaved as closely as possible along the shielded surface, being careful not to include any of the semiconducting compound see Fig.