ASTM A993-98 pdf download,Standard Test Method for Dynamic Tear Testing of Cast Irons to Establish Transition Temperature. This test method ASTM A993-98 covers dynamic tear testing and is applicable to graphitic cast irons and establishes the transition temperature from examination of fracture appearance. Details of apparatus, specimens, and procedures are included. This standard ASTM A993-98 does not purport to address all of the safety concerns, if any, associated with its use. 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.