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LY/T 1301-2005: Gallic acid (for industrial use)
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Gallic acid (for industrial use)
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LY/T 1301-2005
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Basic data | Standard ID | LY/T 1301-2005 (LY/T1301-2005) | | Description (Translated English) | Gallic acid (for industrial use) | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B72 | | Classification of International Standard | 65.020 | | Word Count Estimation | 6,611 | | Date of Issue | 2005-08-16 | | Date of Implementation | 2005-12-01 | | Older Standard (superseded by this standard) | GB 5309-1985 | | Summary | This standard specifies the industrial gallic acid technical requirements, sampling, test methods, inspection rules and signs, packaging, storage and transport requirements. This standard applies to industrial gallic acid products. | LY/T 1301-2005: Gallic acid (for industrial use)---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 (for industrial use)
ICS 65.020
B72
People's Republic of China Forestry Industry Standard
Replace GB 5309-1985
Industrial gallic acid
Released on.2005-08-16
Implementation of.2005-12-01
State Forestry Administration released
Foreword
This standard replaces GB 5309-1985 "Industrial Gallic Acid".
Compared with GB 5309-1985, the main changes of this standard are as follows.
--- The product quality level has been adjusted, divided into superior products, first-class products and qualified products, and their corresponding technical indicators
Line adjustment
--- Added technical indicator "chroma";
--- Increased the technical indicator "turbidity";
--- Added technical indicator "chloride";
--- The inspection method for each indicator uses a normative reference document.
This standard is proposed and managed by 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.
The previous versions of the standards replaced by this standard are as follows.
---GB 5309-1985.
Industrial gallic acid
1 Scope
This standard specifies the technical requirements, sampling, test methods, inspection rules, and marking, packaging, storage and transportation of industrial gallic acid.
Claim.
This standard applies to industrial gallic acid products.
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 gallic acid analysis test method
3 Terms and definitions
The terms and definitions established by LY/T 1644 and the following terms apply to this standard.
3.1
Gallic acid product obtained by hydrolysis, separation and decolorization of gallnut tannin.
4 Technical requirements
4.1 Appearance
White or light gray crystalline powder.
4.2 Technical Specifications
Should meet the technical indicators given in Table 1.
Table 1 Industrial gallic acid technical indicators
Indicator name
index
First-class quality products
Gallic acid content (on a dry basis)/(%) ≥ 99.0 98.5 98.0
Loss on drying/(%) ≤ 10.0 10.0 10.0
Burning residue/(%) ≤ 0.1 0.1 -
Water dissolution test without turbid micro turbidity -
Tannic acid test without turbid micro turbidity -
Sulfate (calculated as SO42-)/(%) ≤ 0.01 0.02 -
Chloride (Cl-)/(%) ≤ 0.01 0.02 -
Chromaticity (platinum-cobalt color number) ≤ 180 250 -
Turbidity (NTU) ≤ 10 - -
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