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Gehman torsional test. Method for measuring low temperature stiffening of rubber by a calibrated torsion wire. (ASTM D-1053). Results often are reported as apparent modulus of rigidity, which is equal to three times Young’s modulus.
Gehman扭转试验。是指采用标定的扭转线测量橡胶低温硬化的方法。(ASTM D - 1053)。其结果经常被记录为表观刚性模量，它等于三倍的杨氏模量。
Goodrich flexometer test. Method for determining compression fatigue characteristics of rubber having a durometer hardness less than 8.5. (ASTM D-623). Results may be reported as temperature rise during continued cyclic loading, permanent set in a specified time, duration of heat buildup, maximum temperature rise or time to failure.
Goodrich挠曲仪测试。是指硬度计硬度小于8.5的橡胶的压缩疲劳特性测定方法。(ASTM D - 623)。其结果可记录为连续循环负载期间的温升、指定时间内的永久设置、蓄热持续时间、最高温升或失效时间。
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