GB/T 4701.10-2025Ferrotitanium - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method (English PDF)
钛铁 硫含量的测定 红外线吸收法和燃烧中和滴定法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 2, 2025
Implementation date
July 1, 2026
Scope
GB/T 4701.10-2025 is the English-translated version of 钛铁 硫含量的测定 红外线吸收法和燃烧中和滴定法.
GB/T 4701.10-2025 is the Chinese standard "Ferrotitanium - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method".
Its scope clause reads: This document describes a method for determining the sulfur content in ferrotitanium using infrared absorption and combustion neutralization titration.
This document applies to the determination of sulfur content in ferrotitanium. The infrared absorption method is used for determination within the range (mass fraction) of 0.005% to 0.045%.
The determination range (mass fraction) by combustion neutralization titration is 0.005% to 0.070%. Its clauses include terms and definitions.
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Document preview — GB/T 4701.10-2025
National Standard of the People's Republic of China
- ICS
- 77.100
- Classification
- H 11
- Replacing
- GB/T 4701.10-2008
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Method
1 Scope
This document describes a method for determining the sulfur content in ferrotitanium using infrared absorption and combustion neutralization titration.
This document applies to the determination of sulfur content in ferrotitanium. The infrared absorption method is used for determination within the range (mass fraction) of 0.005% to 0.045%.
The determination range (mass fraction) by combustion neutralization titration is 0.005% to 0.070%.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 4010 Sample collection and preparation for chemical analysis of ferroalloys
GB/T 6379.1 Accuracy (correctness and precision) of measurement methods and results - Part 1.General principles and definitions
GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining the repeatability of standard measurement methods
Basic methods of sex and representation
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
3 Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4 Method 1.Infrared Absorption Method
4.1 Principle
The sample was heated and burned in an oxygen stream in a high-frequency induction furnace. The generated sulfur dioxide was carried by the oxygen to the measuring chamber of an infrared analyzer.
Sulfur dioxide absorbs infrared energy of a specific wavelength, and the absorbed energy is directly proportional to the concentration of sulfur dioxide. The concentration can be measured by observing the change in energy received by the detector.
Sulfur content.
4.2 Reagents and Materials
Unless otherwise specified, only reagents confirmed to be of analytical grade and distilled water of grade III or higher conforming to GB/T 6682 shall be used in the analysis.
Water of fairly high purity.
4.2.1
Magnesium perchlorate, anhydrous, granular.
4.2.2
Caustic soda asbestos, granular. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 27 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 4010Ferroalloys sampling and preparation of samples for chemical analysis
- GB/T 6379.1Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
- GB/T 6379.2Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
Cited by
Editions of GB/T 4701.10
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4701.10-2025 | Ferrotitanium - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method | current edition | Current |
| GB/T 4701.10-2008 | Ferrotitanium - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method | previous edition | Superseded |
This page sells the current edition, GB/T 4701.10-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 4010-1994 — Ferroalloys-sampling and preparation of samples for chemical analysis
GB/T 4010-2015 — Ferroalloys sampling and preparation of samples for chemical analysis
GB/T 6379.1-2004 — Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
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