
Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
出版:American Society for Testing and Materials

專家解讀視頻
基本信息
標準編號: ASTM D4890-06
發布時間:2006/9/1 0:00:00
標準類別:Standard
出版單位:American Society for Testing and Materials
標準頁數:4
標準簡介
CONTAINED IN VOL. 08.02, 2006Measure visually the color of clear polyester and polyether liquids which applies only to materials whose colors have light-absorption characteristics similar to those of the standards.
本標準替代的舊標準
替代本標準的新標準