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GB/T 23765-2009 English PDF

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GB/T 23765-2009: Test method of sodium cyanide and potassium cyanide products
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GB/T 23765-2009English329 Add to Cart 3 days [Need to translate] Test method of sodium cyanide and potassium cyanide products Valid GB/T 23765-2009

PDF similar to GB/T 23765-2009


Standard similar to GB/T 23765-2009

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Basic data

Standard ID GB/T 23765-2009 (GB/T23765-2009)
Description (Translated English) Test method of sodium cyanide and potassium cyanide products
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G10
Classification of International Standard 71.060.01
Word Count Estimation 14,183
Date of Issue 2009-05-13
Date of Implementation 2010-01-01
Quoted Standard GB/T 3049-2006; GB/T 6682-2008; HG/T 3696.1; HG/T 3696.2; HG/T 3696.3
Regulation (derived from) PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the sodium and potassium cyanide visual inspection, sodium cyanide (or potassium) content, sodium hydroxide (or potassium hydroxide) content, sodium (or potassium) content, sodium formate (or formic acid potassium) content, Determination of iron content, chloride content, water, water insoluble content. This standard applies to sodium cyanide and potassium cyanide products.

GB/T 23765-2009: Test method of sodium cyanide and potassium cyanide products

---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.
Test method of sodium cyanide and potassium cyanide products ICS 71.060.01 G10 National Standards of People's Republic of China Determination of sodium and potassium cyanide products Posted 2009-05-13 2010-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is the data appendix. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical inorganic chemicals Club (SAC/TC63/SC1) centralized This standard was drafted. Anqing Shuguang Chemical Co., Ltd., CNOOC Tianjin Chemical Research Institute, Hebei integrity have Limited liability company. Drafters of this standard. Chenzhang Bin, Wang Lin, Guofeng Xin, Shen Yinshan, Dongzhi Yan. This standard is the first release. Determination of sodium and potassium cyanide products

1 Scope

This standard specifies the sodium and potassium cyanide visual inspection, sodium cyanide (KCN), the content of sodium hydroxide (or potassium) content, Sodium (or potassium) content of sodium (or potassium) content, chloride content, moisture, water-insoluble content, the determination of iron content. This standard applies to sodium cyanide and potassium cyanide products.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard. However, encourage the parties to the agreement Research on whether to use the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. General Method GB/T 3049-2006 industrial chemicals determination of iron content 1,10 Philippines  spectrophotometry method (ISO 6685. 1982, IDT) GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) Preparation of standard titration solution of HG/T 3696.1 inorganic chemical products, chemical analysis Preparation of HG/T 3696.2 inorganic chemical products, chemical analysis of impurity standard solution Preparations of HG/T 3696.3 inorganic chemical products, chemical analysis

3 Safety Warnings

Sodium cyanide and potassium cyanide are virulent, in the sampling and analysis operations should strictly implement the provisions of the standard product safety requirements, and strictly Analysis of this standard procedures. See Appendix A cyanide-containing waste processing. In the analysis of acid, alkali and other corrosive reagents, make Use should be very careful not to spill on the skin. As splashed on skin, wash immediately with plenty of water, severe cases should be treated immediately.

4 General Provisions

The standard reagents and water, did not indicate when additional requirements are specified analytical reagent refers to 6682-2008 and GB/T 's Three water. Standard titration solution used in the tests, the impurity standard solution, preparations and products, did not indicate when the other requirements, according HG/T 3696.1, the provisions prepared HG/T 3696.2 and HG/T 3696.3 of.

5 visual inspection

5.1 solid product Under natural light conditions, by visual judgment. 5.2 Liquid Products The liquid product in 50mL colorimetric tube, under natural light conditions, by visual judgment. 6 Determination of sodium (or potassium) content 6.1 silver nitrate method (Arbitration Act) 6.1.1 Principle Ammonia medium, silver ions and cyanide complexes quantitative reaction with silver nitrate solution as titrant, titration of cyanide ions, excess Silver ions and potassium iodide to form a yellow precipitate, thereby indicating the endpoint of the titration. Calculated according to consumption and the concentration of the standard silver nitrate titration solution content.

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