LY/T 1643-2005 English PDF

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LY/T 1643-2005: Gallic acid (high purity)

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
LY/T 1643-2005	209	Add to Cart	3 days	Gallic acid (high purity)

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Basic data

Standard ID: LY/T 1643-2005 (LY/T1643-2005)
Description (Translated English): Gallic acid (high purity)
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B72
Classification of International Standard: 65.050
Word Count Estimation: 6,686
Date of Issue: 2005-08-16
Date of Implementation: 2005-12-01
Summary: This standard specifies the purity gallic acid technical requirements, sampling, test methods, inspection rules and signs, packaging, storage and transport requirements. This standard applies to the preparation of high purity fine chemicals gallic acid products.

LY/T 1643-2005: Gallic acid (high purity)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Gallic acid (high purity) ICS 65.050 B72 People's Republic of China Forestry Industry Standard High purity gallic acid Released on.2005-08-16 Implementation of.2005-12-01 State Forestry Administration released

Foreword

This standard was proposed by the Institute of Chemical Industry of Forest Products of the Chinese Academy of Forestry. This standard is under the jurisdiction of the Institute of Chemical Industry of Forest Products of the Chinese Academy of Forestry. This standard was drafted by the Institute of Chemical Industry of Forest Products of the Chinese Academy of Forestry. Zhangjiajie Trade Source Chemical Co., Ltd., Hunan Province Xiwuming Rubber Factory and Chongqing Changjiang Yangfan Chemical Co., Ltd. participated in the drafting. The main drafters of this standard. Wang Yumei, Chen Yuhong, Wu Dongmei, Wu Zaiyu, Bi Liangwu, Zhou Dabing and so on. High purity gallic acid

1 Scope

This standard specifies the technical requirements, sampling, test methods, inspection rules and marking, packaging, storage and transportation of high-purity gallic acid. Claim. This standard applies to high purity gallic acid products for the preparation of fine chemicals.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. LY/T 1644-2005 Gallic acid analysis test method

3 Terms and definitions

The terms and definitions established by LY/T 1644-2005 and the following terms apply to this standard. 3.1 A high content, low impurity gallic acid product obtained by hydrolysis, separation, decolorization and refining of gallnut tannin.

4 Technical requirements

4.1 Appearance White crystalline powder. 4.2 Technical Specifications Should meet the technical indicators given in Table 1. Table 1 High-purity gallic acid technical indicators Indicator name indicator Gallic acid content (on a dry basis)/(%) ≥ 99.5 Loss on drying/(%) ≤ 10.0 Burning residue/(%) ≤ 0.05 Water dissolution test without turbidity Tannic acid test without turbidity Sulfate (calculated as SO42-)/(%) ≤ 0.005 Chloride (Cl-)/(%) ≤ 0.001 Chromaticity (platinum-cobalt color number) ≤ 120 Turbidity (NTU) ≤ 5 Iron/(μg/g) ≤ 5 Heavy metal (in Pb)/(μg/g) ≤ 10 ......

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