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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Points a, b and x, y are reference marks at midpoint of test specimen edges.

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ASTM D – Remove the papers and measure the distance between the opposite edges of the specimens at the reference marks to the nearest 0. It is imperative that the specimens be free to change shape as strains are relieved during the period of test. Originally approved in Auditing Consulting Sourcing Training. Validating the specifications, value and safety of your raw materials, products and assets. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

ASTM D 尺寸变化率_百度文库

Table 1 of Classi? 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. Enabling you to identify and mitigate the intrinsic adtm in your operations, supply chains and business processes.


Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. NOTE 2—The paper should be well dusted, and the specimens should not be restricted either by the paper or the clips.

Send us a request Wilton UK: Percent linear change is equal to final length minus original length divided by original length multiplied by Dimensional Stability is a measurement of the linear dimensional change resulting from exposure to temperature.

Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the relevant ASTM material speci?

Send us a request Need help or have a question? Precision and Bias Current edition approved Nov. Last previous edition approved in as D – 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. After removal from the oven, the specimens are reconditioned at room temperature for a minimum of one hour.

Shorter reconditioning times may be used if it can be shown that equivalent results are obtained. Fasten the papers together with paper clips. Assurance Testing Inspection Certification. A number in parentheses indicates the year of last reapproval. The test gives an indication of lot-to-lot uniformity as regards to the degree of internal strains introduced during processing. Sandwiches must not be stacked, as this may restrict movement of the plastic between the papers.


Each specimen shall be marked to show the direction of calendering or extrusion.

Dimensional Stability ASTM D

Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. This standard has been approved for use by agencies of the Department of Defense. 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, are entirely their own responsibility.

A negative value denotes shrinkage, and a positive value indicates expansion. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.