Standard Test Method for Tensile Properties of （拉伸性能的标准试验方法）.pdfVIP

Designation: D 638 - 02a INTERNATIONAL Standard Test Method for 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. A number in parentheses indicates the year of last reapproval. A superscript epsilon (E) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope * 1.6 This standard does not purport to address all of the 1.1 This test method covers the determination of the tensile safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- properties of unreinforced and reinforced plastics in the form priate safety and health practices and determine the applica- of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment , temperature, humidity, and bility of regulatory limitations prior to use. testing machine speed. 2. Referenced Documents 1.2 This test method can be used for testing materials of any 1 ASTM Standards: thickness up to 14 mm (0.55 in. ). However, for testing D 229 Test Methods for Rigid Sheet and Plate Materials specimens in the form of thn sheeting, including film less than