ASTM D6693 PDF

GeoTesting Express is a provider of Geosynthetic Testing Services – ASTM D,Standard Test Method for Determining Tensile Properties of Nonreinforced. ASTM D (D) determines the tensile properties of nonreinforced geomembranes in the form of standard dumbbell-shaped test specimens when tested. Buy ASTM D R TEST METHOD FOR DETERMINING TENSILE PROPERTIES OF NONREINFORCED POLYETHYLENE AND.

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A wide difference may exist between the rate of crosshead movement and the rate of strain of the specimen indicating that the testing speeds specified may disguise important effects or characteristics of these materials in the plastic state. Link to Active This link will always route to the current Active version of the standard.

However, because of the high degree of sensitivity exhibited by many plastics to rate of straining and environmental conditions, data obtained by this test method cannot be considered valid for applications involving load-time scales or environments widely asgm from those of this test method. Tensile properties may provide useful data for plastics engineering design purposes.

Hence, when comparative tests of materials are desired, the care must be exercised d669 ensure that all samples are prepared in exactly the same way, unless the test is to include the effects of sample preparation. The constant rate of crosshead movement of this test lacks accuracy from a theoretical standpoint.

A wide difference may exist between the rate of crosshead movement and the rate of strain of the specimen indicating that the testing speeds specified may disguise important effects or characteristics of these materials in the plastic state.

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Active view current version of standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of wstm limitations prior to use.

Special additional tests should be used where more precise physical data are needed. The values given in parentheses are for information only.

This sensitivity to rate of straining and environment necessitates testing over a broad load-time scale and range of environmental conditions if tensile properties are to suffice for engineering design purposes. Consequently, where precise comparative results are desired, these factors must be carefully monitored and controlled. D693 additional tests should be used where more precise physical data are needed. Further, it is realized that variations in the thicknesses of test specimen, as permitted by this test standard, produce variations in the surface-volume ratios of such specimens, and that these variations may influence the test results.

The constant rate of crosshead movement of this test lacks accuracy from a theoretical standpoint.

Combining values from the two systems may result in non-conformance with the standard. This test method is not intended to cover precise physical procedures. Hence, where directly comparable results are desired, all samples should be of equal thickness. Hence, where directly comparable results are desired, all samples should be of equal thickness.

These data are also useful for qualitative characterization and for research and development. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM D Tensile Test of Geomembranes

Note—This test method is not intended to cover precise physical procedures. The values stated in each system may not be exact equivalents; therefore, each system shall be sstm independently of the other. Link to Active This link will always route to the current Active d66693 of the standard.

Historical Version s – view previous versions of standard. Further, it is realized that variations in the thicknesses of test specimens, as permitted by this test method, produce variations in the surface-volume ratios of such specimens, and that these variations may influence the test results.

In cases of such dissimilarity, no reliable estimation of the limit of usefulness can be made for most plastics. It may be necessary to modify this procedure for use in testing certain materials as recommended by the material specifications. Similarly, for referee purposes or comparisons within any given series of specimens, care must be taken to secure the maximum degree of uniformity in details of preparation, treatment, and handling.

Therefore, it is advisable to refer to that material’s specification before using this test method. 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.