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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It is the responsibility of d275 user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The inch-pound units in parentheses are for information only. 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. D — 01 A—Identi? A number in parentheses indicates the year of last reapproval.
If this is done, the time of extraction must be reported. For several determinations at one time, but not exceeding six, a mL?
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Summary of Test Method Individual reprints single or multiple copies of this standard may be obtained d22765 contacting ASTM at the above address or at phonefaxor service astm.
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, d2756 entirely their own responsibility. 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. Link to Active This link will always route to the current Active version of the standard.
If necessary, place a weight on the jar or clamp it to hold it in place. The surface-to-volume ratio shall be kept as small as reasonably possible. This ratio is approximately 1. Increasing this period to 72 h had no signi?
The inch-pound units in brackets are for information only.
NOTE 9—The size of the swollen test specimen dictates the size of the weighing bottle to be used. If the system is un? Specific precautionary statements are given in Sections 6, 10, and If you feel astk 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.
Low swell ratios indicate a more tightly bound structure. They are applicable to crosslinked ethylene plastics of all densities, including those containing?
Results obtained from such 2d765 are of limited value. Calculation See Note 11 for Derivation Users of this test method should apply the principles outlined in Practice E to generate data speci?
Weigh the pouch and specimen W2. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. However, a longer immersion period does slightly increase the values for percent extract. In case of excessive inhalation, seek fresh clean air.
For each material, all the samples were prepared at one source, but the individual specimens were prepared at the laboratories that tested them. Active view current version of standard. NOTE 3—Since most asmt the extraction occurs within less than the speci? Last previous edition approved in as D — Note 1-ISO is similar to this test, but is not equivalent.
asttm If the compound absorbs moisture, cool the specimen in a desiccator before weighing. Blow the surfaces Note Hence, determination of the gel content asym a means of both controlling the process and rating the quality of finished products.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. However, this test method permits swell ratio to be determined. NOTE 11—Derivation of calculations: The extraction thimble assembly rests upon the mm portion of the thimble previously cut off, the latter inserted into the modi? If the system is?