ASTM C 338 : 1993現行
TEST METHOD FOR SOFTENING POINT OF GLASS
出版：American Society for Testing and Materials
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基本信息
標準編號： ASTM C 338 : 1993
標準類別：Standard
出版單位：American Society for Testing and Materials
標準頁數：0
標準簡介
CONTAINED IN VOL. 15.02, 2017 Defines the determination of the softening point of a glass by determining the temperature at which a round fiber of the glass, nominally 0.65 mm in diameter and 235 mm long with specified tolerances, elongates under its own weight at a rate of 1 mm/min. when the upper 100 mm of its length is heated in a specified furnace at the rate of 5 +/-1 degrees C/min.
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