標題: ASTM D 778-1997 紙萃液(熱萃取和冷萃取法)氫離子濃度(pH)的... [打印本頁] 作者: 兌水 時間: 2009-9-26 09:03 標題: ASTM D 778-1997 紙萃液(熱萃取和冷萃取法)氫離子濃度(pH)的... D778-97(2002) Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot- Extraction and Cold-Extraction Procedures)