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GB/T 5686.1-2022: Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal - Determination of manganese content - Potentiometric method, titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid oxidation
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 5686.1-2022	English	409	Add to Cart	4 days [Need to translate]	Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal - Determination of manganese content - Potentiometric method, titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid oxidation
GB/T 5686.1-2008	English	359	Add to Cart	3 days [Need to translate]	Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal -- Determination of manganese content -- Potentiometric method and titrimetric method after ammonium nitrate and perchloric acid oxidation
GB/T 5686.1-1988	English	199	Add to Cart	2 days [Need to translate]	Methods for chemical analysis of silicomanganese alloy--The potentiometric titration method for the determination of manganese content

GB/T 5686.1-2022: Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal - Determination of manganese content - Potentiometric method, titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid oxidation

---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.
Ferromanganese, ferromanganese-sili4con, nitrogen-bearing ferromanganese and manganese metal -- Determination of manganese content -- Potentiometric method, titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid o ICS 77.100 CCSH11 National Standards of People's Republic of China Replacing GB/T 5686.1-2008 Ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Determination of Manganese Content Potentiometric Titration, Ammonium Nitrate Oxidation Titration and perchloric acid oxidative titration 2022-10-12 Released 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is Part 1 of GB/T 5686.GB/T 5686 has released the following parts. --- Part 1.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese manganese content by potentiometric titration, ammonium nitrate oxidative titration method and perchloric acid oxidative titration; --- Part 2.Determination of ferromanganese, manganese-silicon alloys, ferromanganese nitride and metal manganese-silicon content molybdenum blue photometric method, potassium fluorosilicate titration method and perchloric acid gravimetric method; --- Part 4.Determination of ferromanganese, manganese-silicon alloys, ferromanganese nitride and metallic manganese phosphorus content Molybdenum blue spectrophotometry and bismuth phosphorus molybdenum blue Spectrophotometry; --- Part 5.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese carbon content infrared absorption method, gas volume method, Gravimetric and Coulomb methods; --- Part 7.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese sulfur content by infrared absorption method and combustion neutralization drop statute. This document replaces GB/T 5686.1-2008 "Determination of content of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese manganese by potentiometric titration method, ammonium nitrate oxidative titration and perchloric acid oxidative titration", compared with GB/T 5686.1-2008, except for structural adjustment and editorial changes In addition, the main technical changes are as follows. a) Changed the scope of application (see Chapter 1, Chapter 1 of the.2008 edition); b) Method 1 replaces the saturated sodium pyrophosphate solution with potassium pyrophosphate solution (see 4.2.10, 3.2.7 of the.2008 edition); c) Added the content of standard titration solution of potassium permanganate with manganese standard solution in Method 1 (see 4.2.13,.2008 edition 3.2.9.2); d) Added the description of potentiometric titrator and acidity meter in Method 1 (see 4.3.4 and 4.3.5, 3.3.4 and 3.3.5 of the.2008 edition); e) Changed the pH value of solution acidity before titration in Method 1 (see 4.5.4.5, 3.5.3.5 of the.2008 edition); f) Changed the tolerance content (see 4.7, 5.7, 6.7, 3.7, 4.7, 5.7 of the.2008 edition); g) Added the normative appendix "Procedure Flowchart for Acceptance of Sample Analysis Results" (see Appendix A). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Iron and Steel Association. This document is under the jurisdiction of the National Standardization Technical Committee for Pig Iron and Ferroalloys (SAC/TC318). This document is drafted by. Ordos West Gold Mining and Metallurgy Co., Ltd., Inner Mongolia Ordos Electric Power Metallurgical Group Co., Ltd. Company, Sichuan Chuantou Emei Ferroalloy (Group) Co., Ltd., Xinyu Iron and Steel Co., Ltd., CITIC Jinzhou Metal Co., Ltd., Ji Iron Ferroalloy Co., Ltd., Hebei Jinxi International Trade Co., Ltd., Metallurgical Industry Information Standards Research Institute. The main drafters of this document. Xu Wengao, Ma Ning, Liu Peng, Zhang Pengda, Su Jie, Fang Yan, Chen Gang, Lv Xuemei, Cui Yuwen, Zeng Bo, Wang Min, Liu Huifen, Wang Tiancai, Li Jinglin, Liu Bing, Wu Yinjun, Ye Xiaoshuang, Lu Chunsheng, Zhang Chen. The previous versions of this document and its superseded documents are as follows. --- First published in 1985 as GB 5686.1-1985, first revised in 1988; --- In the second revision in.2008, it was incorporated into GB/T 7730.1-2002 "Determination potential of ferromanganese and blast furnace ferromanganese content Titration and Ammonium Nitrate Oxidative Titration", GB/T 8654.7-1988 "Metallic Manganese Chemical Analysis Method Potentiometric Titration Determination The content of "manganese content" (the previous versions of GB/T 7730.1-2002 were released as follows. GB/T 7730.1-1987 "ferromanganese and blast furnaces" Ferromanganese Chemical Analysis Method Potentiometric Titration Determination of Manganese Content"); ---This is the third revision.

Introduction

Since there are many detection elements involved in the detection process of manganese-based ferroalloys such as ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese, the The scope of application and the method of application vary. In order to ensure the convenience and accuracy of testing standards for ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Indeed, analytical methods for different elements of ferromanganese, manganese-silicon alloys, ferromanganese nitrides and metal manganese have been established to support ferromanganese, manganese-silicon alloys, nitrides National standard system for the detection of ferromanganese and manganese metal. GB/T 5686 ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese series analysis methods are The basic standard for the detection of ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese in my country consists of the following five parts. --- Part 1.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese manganese content by potentiometric titration, ammonium nitrate oxidative titration method and perchloric acid oxidative titration. The purpose is to measure the manganese content in ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese. Potentiometric titration, ammonium nitrate oxidative titration and perchloric acid oxidative titration. --- Part 2.Determination of ferromanganese, manganese-silicon alloys, ferromanganese nitride and metal manganese-silicon content molybdenum blue photometric method, potassium fluorosilicate titration method and perchloric acid gravimetric method. The purpose is to measure the silicon content in ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese, using molybdenum blue light degree method, potassium fluorosilicate titration method and perchloric acid gravimetric method. --- Part 4.Determination of ferromanganese, manganese-silicon alloys, ferromanganese nitride and metallic manganese phosphorus content Molybdenum blue spectrophotometry and bismuth phosphorus molybdenum blue Spectrophotometry. The purpose is to measure the phosphorus content in ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese, using molybdenum blue spectrophotometer Spectrophotometry and Bismuth Phosphomolybdenum Blue Spectrophotometry. --- Part 5.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese carbon content infrared absorption method, gas volume method, Gravimetric and Coulomb methods. The purpose is to measure the carbon content in ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese, using infrared Absorption, gas volumetric, gravimetric and coulometric methods. --- Part 7.Determination of ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese sulfur content by infrared absorption method and combustion neutralization drop statute. The purpose is to measure the sulfur content in ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese, using infrared absorption method and combustion method. Burn neutralization titration. Ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Determination of Manganese Content Potentiometric Titration, Ammonium Nitrate Oxidation Titration and perchloric acid oxidative titration Caution - Persons using this document should have formal laboratory work experience. This document does not address all possible security issues It is the user's responsibility to take appropriate safety and health measures, and to ensure compliance with the conditions stipulated by relevant national regulations.

1 Scope

This document describes the use of potentiometric titration, ammonium nitrate oxidative titration, and perchloric acid oxidative titration for the determination of ferromanganese, manganese-silicon alloys, nitrided Method for manganese content in ferromanganese and metallic manganese. This document is applicable to the determination of manganese content in ferromanganese, manganese-silicon alloy, ferromanganese nitride and metal manganese. The range of determination (mass fraction). 50.00%~98.00%. Method 1 is not applicable to ferromanganese, manganese-silicon alloy, ferromanganese nitride and gold with chromium and vanadium content (mass fraction) greater than 0.4% Determination of manganese content in manganese.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 4010 Collection and preparation of samples for chemical analysis of ferroalloys GB/T 6379.1 Accuracy (correctness and precision) of measurement methods and results - Part 1.General provisions and definitions GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining repetition of standard measurement methods Basic Methods of Reproducibility and Reproducibility GB/T 6682 Analysis Laboratory Water Specifications and Test Methods GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 12806 Laboratory glass instrument single-line volumetric flask GB/T 12807 Laboratory glass instrument indexing pipette GB/T 12808 Laboratory glass instrument single reticle pipette

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document. 4 Method—potentiometric titration 4.1 Principle The sample is decomposed with hydrochloric acid, nitric acid, perchloric acid and hydrofluoric acid, and is measured by potentiometric titration with potassium permanganate standard solution in neutral potassium pyrophosphate medium. Determine the manganese content. Among them, manganese(II) ions are oxidized and permanganate ions are reduced to form pyrophosphate complexes of manganese(III), manganese(II) ions ...