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LY/T 2561-2015 English PDF

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LY/T 2561-2015: Indentification of industrial salt adulterant in oleoresin
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Basic data

Standard ID LY/T 2561-2015 (LY/T2561-2015)
Description (Translated English) Indentification of industrial salt adulterant in oleoresin
Sector / Industry Forestry Industry Standard (Recommended)
Classification of Chinese Standard B72
Classification of International Standard 65.05
Word Count Estimation 5,514
Date of Issue 2015-10-19
Date of Implementation 2016-01-01
Regulation (derived from) National Forestry Anministration Announcement ��2015 No.19��
Issuing agency(ies) State Forestry Administration

LY/T 2561-2015: Indentification of industrial salt adulterant in oleoresin

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Indentification of industrial salt adulterant in oleoresin ICS 65.050 B72 People's Republic of China Forestry Industry Standard Method for identifying industrial salt dopants in turpentine Released on October 18,.2015 2016-01-01 implementation State Forestry Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the State Forestry Administration of China. 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. Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Guangxi Wuzhou Richeng Linhua Co., Ltd., cloud Nansenyuan Chemical Co., Ltd. The main drafters of this standard. Zhao Zhendong, Li Dongmei, Bi Liangwu, Li Qian, Zhou Guangping, Wang Wei, Chen Yuxiang, Lu Yanju, Gu Yan. Method for identifying industrial salt dopants in turpentine

1 Scope

This standard specifies the identification method for industrial salt dopants in turpentine. This standard applies to the rapid evaluation of turpentine and doped turpentine.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. Preparation of GB/T 601 chemical reagent standard titration solution Preparation of standard solution for GB/T 603 chemical reagent impurity determination GB/T 6682 Analytical laboratory water specifications and test methods GB/T 12901 fat turpentine

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Industrial salt dopant industrialsaltsadulterant An industrial salt (sodium chloride) impurity that is incorporated into turpentine and is not a turpentine.

4 Principle

Industrial salt that may appear in turpentine, using chloride ions to react with silver ions to form white silver chloride precipitate, whether it is in turpentine The presence of industrial salt dopants is qualitatively discriminated.

5 Test methods

5.1 Reagents and solutions 5.1.1 Unless otherwise stated in this chapter, the solutions used are prepared according to the provisions of GB/T 601 and GB/T 603. The reagents used are of analytical grade. Reagents, test water should meet the three-level water regulations in GB/T 6682. 5.1.2 Turpentine oil. meet the requirements of GB/T 12901 fat turpentine (excellent grade). 5.1.3 Silver nitrate solution (0.1mol/L). Weigh 17.5g of silver nitrate, add appropriate amount of water and 13mL concentrated nitric acid to dissolve it, then add water to 1000 mL was stored in a brown bottle. 5.1.4 10% nitric acid solution. Measure 110mL of nitric acid (content 65%) and add it to water, and dilute to 1000mL with water. 5.2 Instruments and equipment 5.2.1 Water bath. The control accuracy is 1 °C.

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