D412-98a2002)硫化橡胶、热塑橡胶和热塑合成橡胶的拉伸试验方法 1).pdfVIP

Designation: D 412 – 98a (Reapproved 2002)1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers— Tension1 This standard is issued under the fixed designation D 412; 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 () 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 NOTE—Section 9.2 was editorially updated in January 2003. 1. Scope E 4 Practices for Force Verification of Testing Machines3 1.1 These test methods cover procedures used to evaluate 2.2 ASTM Adjunct: the tensile (tension) properties of vulcanized thermoset rubbers Cut Ring Specimens, Method B (D 412)4 and thermoplastic elastomers. These methods are not appli- 2.3 ISO Standards: cable to ebonite and similar hard, low elongation materials. ISO 37 Rubber, Vulcanized and Thermoplastic Determina- The methods appear as follows: tion of Tensile Stress-Strain Properties5 Test Method A—Dumbbell and Straight Section Specimens 3. Terminology Test Method B—Cut Ring Specimens 3.1 Definitions: NOTE 1—These two different methods do not produce identical results. 3.1.1