標(biāo)題: ASTM D 2238-1992 含甲基團(tuán)的聚乙烯對(duì)波長(zhǎng)為1378cm-1光波吸... [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-30 16:44 標(biāo)題: ASTM D 2238-1992 含甲基團(tuán)的聚乙烯對(duì)波長(zhǎng)為1378cm-1光波吸... D2238-92(1999) Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm