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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The surface-to-volume ratio shall be kept as small as reasonably possible. 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. Current edition approved April 1, NOTE 10—Extreme care must be used in handling the swollen test specimen to obtain reliable results.
If the system is un?
Specific precautionary statements are given in Sections 6, 10, and Such extraction test methods are described herein. This standard is subject to revision at any time by the responsible technical committee and must asym reviewed every? Any test specimen preparation, conditioning, dimensions, or testing parameters, or a combination thereof, covered in the materials d265 Determination of the g Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
ASTM.D Determination of Gel content and swell ratio of crosslinked ethylene plastics_百度文库
Provided that no chemical degradation occurs, 5 the lower the swell ratio the greater the crosslinking and the lower the molecular weight between crosslinks. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Stopper the weighing bottle. Precision and Bias ast Low swell ratios indicate a more tightly bound structure.
In the presence of xylene, polyethylene in the density range from 0. NOTE 7—The solvent must cover the swollen test specimen at the conclusion of the immersion period to obtain reliable results. Users of this standard are expressly advised that determination of the validity of any such patent asgm, and the risk of infringement of such rights, are entirely their own responsibility. The inch-pound units in wstm are for information only. If there are no material speci?
Originally approved in Heat in vacuum until xylene is all removed, as determined by repeated weighing. Excessive inhalation of the vapors may cause dizziness or headache, or both.
Cool cold trap with dry ice and acetone to catch and condense xylene vapor. D — 01 A—Identi? The test specimen should ast, be squeezed with the forceps. In case of excessive inhalation, seek fresh clean air.
Use only in a ventilated hood. NOTE 5—If the modi? It is not equivalent to ISO in any other measurement or section.
ASTM D2765 – 16
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. They have d265 particularly useful for electrical insulations since specimens may be selected from those portions of the insulation most susceptible to insufficient crosslinking.
For Size 2 AWG and smaller, the dimensions should be proportionately less. Glass wool 13 to 19 mm thick [1? 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. Historical Version s – view previous versions of standard. Fold over the open side of the pouch and staple the edge to form a cage.
Both measurements are obtained in one test. They have been particularly useful for electrical insulations since specimens can be awtm from those portions of the insulation most susceptible to insufficient crosslinking.
Specific precautionary statements are given in Sections 69and Such extraction test methods are described herein. This sample then is cut or diced into pieces measuring approximately 6 by 6 mm [1? If there are no material specifications, then the default conditions apply.