ASTM D 7252-2006 标准详情
- 标准号:ASTM D 7252-2006
- 中文标题:聚氨酯原材料的标准试验方法:测定异氰酸酯中单体和甲酚含量
- 英文标题:standard test method for polyurethane raw materials: determination of monomer and isomers in isocyanates
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2006-04-01
1.1 This test method determines the percent by weight of monomeric isomers and total monomer in crude or modified isocyanates. The test method is applicable to methylene-bis-(4-phenylisocyanate) (MDI) and polymethylene polyphenylisocyanates (PMDI). (
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