標題: ASTM D 6342-1998 聚氨酯原材料標準慣例:近紅外(NIR)光譜法... [打印本頁] 作者: 兌水 時間: 2009-10-23 15:15 標題: ASTM D 6342-1998 聚氨酯原材料標準慣例:近紅外(NIR)光譜法... D6342-98(2003) Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy