GB/T 5686.7-2022 in English

VALID

Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method

Issued on:2022-12-30
Implemented on:2023-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $250.00
$243.00

Standard No:	GB/T 5686.7-2022
Document status:	VALID
Title in English:	Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method
Title in Chinese:	锰铁、锰硅合金、氮化锰铁和金属锰硫含量的测定红外线吸收法和燃烧中和滴定法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-12-30
Implemented on:	2023-07-01
Superseding:	GB/T 5686.7-2008 Ferromanganese ferromanganese-silicon nitrogen-bearing ferromanganese and manganese metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization method
ICS Classification:	77.100-Ferroalloys
Chinese Classification:	H11-Steel and iron alloy analysis method
Professional Classification:	GB-National Standard
Related Keywords:	sulfur content infrared absorption method infrared absorption method manganese metal determination manganese silicon alloy infrared absorption method complicated operation
Related Topics:	Ferromanganese manganese alloy Infrared method Infrared method Iron and manganese dissolution Nitrogen content in silicomanganese Determination of manganese and iron in plants Trace Selenium in Metal Manganese Absorption Cell Infrared absorption bottle The absorption peak of mid-infrared iron Mid-infrared + iron absorption peak Manganese detection aas determination of manganese Billion ferromanganese Water Quality Iron and Manganese Iron and manganese in water quality absorb infrared Manganese and other ferroalloys ferromanganese alloy Titration method for determination of manganese content in steel Metal Infrared Absorption Steel manganese content titration method Ferromanganese content test method Water Quality Iron and Manganese Metal manganese powder Infrared Absorption of Metals Absorption Peaks of Metals in Infrared Manganese absorption peak Metal Infrared Absorption Determination of Metal Chromium Sulfur Content Infrared Absorption Method and Combustion Neutralization Titration Method Determination of Metal Chromium Sulfur Content Infrared Absorption Method and Combustion Neutralization Titration Method Determination of tungsten iron sulfur content infrared absorption method and combustion manganese titration Silicon metal absorption peak iron sulfide absorption Ferromanganese nitride Atomization of iron and manganese Metal infrared absorption peak Manganese silicon alloy and metal manganese lead, arsenic Total iron and manganese content in water Infrared absorption peaks of metals Silicon manganese alloy nitrogen Aluminum Iron Infrared Iron powder manganese content GB/T 5686.7 GB/T 5686.7-1988 GB/T 5686.7-2008 Manganese nitrogen alloy Manganese silicon alloy Ferromanganese, manganese silicon alloy manganese Manganese Silicon manganese alloy acceptance Determination method of silicon manganese alloy manganese Infrared absorption cell Manganese assay methods and Determination method for iron and manganese pyrophosphate content Manganese silicon alloy grade ferromanganese execution Heavy metal manganese detection method Ferro alloy manganese execution Silicon manganese alloy country Metal manganese powder Determination method of manganese, iron and lead content Silicon Manganese Execution Method for determination of plant manganese absorption

《GB/T 5686.7-2022锰铁、锰硅合金、氮化锰铁和金属锰硫含量的测定红外线吸收法和燃烧中和滴定法》由TC318（全国生铁及铁合金标准化技术委员会）归口，TC318SC1（全国生铁及铁合金标准化技术委员会化学分析分会）执行，主管部门为中国钢铁工业协会。

Introduction

1. Background and significance of the standard

Ferromanganese, silicon manganese alloy, ferromanganese nitride and metallic manganese are important industrial materials, widely used in steel smelting and alloy production. Sulfur content, as a key indicator of these materials, directly affects their performance and application effects. The formulation of GB/T5686.7-2022 standard aims to unify the determination method and improve the accuracy of detection.

2. Comparative analysis of determination methods

Determination method	Scope of application	Sensitivity	Operation complexity
Infrared absorption method	Applicable to ferromanganese, manganese silicon alloy and ferromanganese nitride, with a determination range of 0.003%~0.120%	High sensitivity (up to 0.0001%)	Easy to operate and high degree of automation
Combustion neutralization titration method	Applicable to ferromanganese, manganese silicon alloy and metallic manganese, not applicable to ferromanganese nitride	Slightly less sensitive than infrared absorption method	Complicated operation, requires professionals

Application example: Determination of sulfur content in manganese silicon alloy

A steel plant used infrared absorption method to test manganese silicon alloy, and the result showed that its sulfur content was 0.015%, which met the industrial standard. Another enterprise used combustion neutralization titration method and measured the sulfur content of the same sample to be 0.016%, which was within the allowable range.

3. Background of standard formulation and technological evolution

The GB/T5686 series of standards originated in 1988. This revision mainly optimized the accuracy and scope of application of the determination method. Technical improvements include:

Introduction of highly sensitive instruments (such as high-frequency infrared carbon and sulfur analyzers)
Increase blank value requirements for calibration tests
Optimization of the analysis result acceptance procedure

4. Implementation recommendations and precautions

To ensure the accuracy of the measurement, it is recommended to:

Choose instruments that meet the accuracy requirements (such as high-frequency infrared carbon and sulfur analyzers)
Strictly control blank tests and standard material calibration
Operators need to receive professional training

For different materials, the appropriate method should be selected according to their characteristics. For example, ferromanganese nitride is only suitable for infrared absorption method.

More samples: DL/T 5154-2012 JJG 21-2008 GB 50021-2001(2009)

Sample only — not a preview of GB/T 5686.7-2022

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