This standard is issued under the fixed designation D ; the number relevant ASTM material specification shall take precedence. GeoTesting Express is a provider of Geosynthetic Testing Services – ASTM D,Standard Test Method for Linear Dimensional Changes of Non-rigid. ASTM D Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature.

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ASTM D – A number in parentheses indicates the year of last reapproval.

ASTM D 尺寸变化率_百度文库

This standard has been approved for use by agencies of the Department of Defense. 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. NOTE 1—This test method and ISO address the same matter, but differ in technical s1204 and results cannot be directly compared between the two methods.

The test gives an indication of lot-to-lot uniformity as regards to e1204 degree of internal strains introduced during processing. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the relevant ASTM material speci?

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If there are no relevant ASTM material speci?

Table 1 of Classi? Current edition approved Nov. Originally approved in Last previous edition approved in as D – Each specimen shall be marked to show the direction of calendering or extrusion. The midpoint of each edge shall be marked for use as atm reference point when?

Fasten the papers asttm with paper clips. NOTE 2—The paper should be well dusted, and the specimens should not be restricted either by the paper or the clips.

It is imperative that the specimens be free to change shape as strains are relieved during the period of test. Sandwiches must not be stacked, as this may restrict movement of the plastic between the papers. Remove the papers and measure the distance between the opposite edges of the specimens at the reference marks to the xstm 0.

Shorter reconditioning times may be used if it can be shown that equivalent results are obtained. A negative value denotes shrinkage, and d124 positive value indicates expansion.

Dimensional Stability ASTM D1204

Precision and Bias Points a, b and x, y are reference marks at midpoint of test specimen edges. November 1, 1 Revised Section 7 and 8. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.


Users of this standard are asfm advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may asym. 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. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.