ASTM D4214-07 Method B Standard Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films
ASTM D4214-07 评定室外用漆膜粉化程度的试验方法
样品要求：标准样片:70×150mm, 3 pcs
周期：7~9工作日
ASTM D4214-07 Method B Standard Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films
ASTM D4214-07 评定室外用漆膜粉化程度的试验方法
样品要求：标准样片:70×150mm, 3 pcs
周期：7~9工作日