#Astm d638 pdf iso#

Test Methods D 229 and Test Method D 651. Such materials should be tested in accordance with However, where these materials are used as electrcal insulation , NOTE 3- This test method may be used for testing phenolic molded resin or lamnated materials. Special additional tests should be used where more precise physical data are needed. Hence, where directly comparable results are desired, all samples should be of equal thckness. The surface-volume ratios of such specimens, and that these varations may influence the test results. It is recognized that the constant rate of crosshead movement type of test leaves much to be desired from a theoretical standpoint, that

#Astm d638 pdf iso#

NOTE I-This test method and ISO 527- 1 are NOTE 2-This test method is not intended to Furter, it is realized that varations in the thicknesses of test specimens, which are permtted by these procedures, produce varations inĭ 4000 Classification System for Specifying Plastic Mate. Specified disguise important effects characteristic of materials in the plastic state. Sheeting D 883 Terminology Relating to Plastics D 1822 Test Method for Tensile- Impact Energy Plastics and Electrical Insulating Materials Wide differences may exist between rate of crosshead movement and rate of strain between gage marks on the specimen, and that the testing speeds Referenced Documents 1 ASTM Standards:ĭ 229 Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation D 412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers- Tensionĭ 618 Practice for Conditioning Plastics for Testing D 651 Test Method for Tensile Strength of Molded Electrical Insulating Materialsĭ 882 Test Methods for Tensile Properties of Thin Plastic It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applica-īility of regulatory limitations prior to use.Ģ. ) must be reduced by machining.ġ.3 This test method includes the option of determning Poisson s ratio at room temperature.ġ.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. Materials with a thickness greater than 14 mm (0. ) in thickness, Test Methods D 882 is the preferred test method. However, for testing specimens in the form of thn sheeting, including film less than 1.0 mm (0.

1.2 This test method can be used for testing materials of any thickness up to 14 mm (0. This standard has been approved for use by agencies of the Department of Defense.ġ.1 This test method covers the determination of the tensile properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, humidity, and testing machine speed. A superscript epsilon (E) indicates an editorial change since the last revision or reapproval. A number in parentheses indicates the year of last reapproval. Tensile Properties of Plastics Ths standard is issued under the fixed designation D 638 the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.