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.
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 d12204 test method and ISO address the same matter, but differ in technical content and results cannot be directly compared between the two methods. The test gives an indication of lot-to-lot uniformity as regards to the 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? 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 a reference point when? Fasten the papers together with paper clips.
Dimensional Stability ASTM D1204
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 nearest 0. Shorter reconditioning times may be used if it can be shown that equivalent results are obtained. A negative value denotes shrinkage, and a positive value indicates expansion. 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.
Dimensional Stability ASTM D
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