LY/T 1642-2005 单宁酸分析试验方法

ICS65.020

B72

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

Testmethodforanalysisoftannicacid

2005-08-16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规范性引用文件································································································……

3术语和定义······································································································……

4试验方法·········································································································……

4.1干燥失重的测定·····························································································……

4.2单宁酸含量的测定··························································································……

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···························································································……

4.6砷的测定······································································································……

4.7铅的测定······································································································……

4.8重金属的测定································································································……

4.9树胶、糊精试验············································································..·.··……

4.10树脂试验···········································································.··..···········.·..·……

4.11水溶解试验

4.12没食子酸的测定·····························································································……

LY/T1642-2005

前言

本标准由中国林业科学研究院林产化学工业研究所提出。

本标准由中国林业科学研究院林产化学工业研究所归口。

本标准由中国林业科学研究院林产化学工业研究所负责起草，湖南省张家界贸源化工有限公司、广

西武鸣拷胶厂、云南省盐津林化厂、重庆长江扬帆化工有限公司等参加起草。

本标准主要起草人:陈茄鸿、汪咏梅、吴冬梅、吴在篙e

LY/T1642-2005

单宁酸分析试验方法

苦告—使用本标准的人员应有正规实验室工作的实践经验。本标准并未指出所有可能的安全问

题。使用者有责任采取适当的安全和健康措施，并保证符合国家有关规定的条件。

范围

本标准规定了单宁酸分析的试验方法。

本标准适用于以五倍子为原料制成的不同用途的单宁酸产品质量的分析。

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有

的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究

是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。

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