ASTM C748 Standard Test Method for Rockwell Hardness of Graphite Materials
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ASTM International
Standard Test Method for Rockwell Hardness of Graphite Materials
N C748
Annotation
This test method covers Rockwell L scale hardness testing of graphite materials with grain size less than 0.8 mm and a hardness range between 0 and 120.
Test Methods E18 shall be followed except where otherwise indicated.
The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
This standard 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.
Автоматический перевод:
Метод стандартной пробы для твердости по Роквеллу материалов графита
Этот метод испытаний покрывает испытание на твердость масштаба Роквелла Л материалов графита с размером зерна меньше чем 0.8 мм и диапазоном твердости между 0 и 120.
Методы испытаний E18 должны сопровождаться кроме, где иначе обозначено.
Значения, указанные в единицах СИ, должны рассматриваться как стандарт. Никакие другие единицы измерения не включены в этот стандарт.
