LY-T 1642-2005 单宁酸分析试验方法.pdf

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1、ICS65.020B72中华人民共和国林业行业标准LY/T1642-2005单宁酸分析试验方法Testmethodforanalysisoftannicacid2005-08-16发布2005-12-01实施国家林业局发布LY/T1642-2005目次前言··················································································································⋯⋯1范围·..............................................

2、.....................................................................2规范性引用文件································································································⋯⋯3术语和定义······································································································⋯⋯4试验方法····

3、·····································································································⋯⋯4.1干燥失重的测定·····························································································⋯⋯4.2单宁酸含量的测定···········································································

4、···············⋯⋯4.3水不溶物的测定·........................................................................···················⋯⋯4.4颜色的测定··································································································⋯⋯4.5灼烧残渣的测定·······················································

5、····································⋯⋯4.6砷的测定······································································································⋯⋯4.7铅的测定······································································································⋯⋯4.8重金属的测定·························

6、·······································································⋯⋯4.9树胶、糊精试验···········································································.......·..·..··.....⋯⋯4.10树脂试验···········································································.·..············..·.......⋯⋯4.1

7、1水溶解试验.........................................................................................................4.12没食子酸的测定·····························································································⋯⋯LY/T1642-2005前言本标准由