GB/T 3884.3-2025Methods for chemical analysis of copper concentrates - Part 3: Determination of sulfur content - Gravimetric method and combustion-titration method (English PDF)
铜精矿化学分析方法 第3部分：硫含量的测定 重量法和燃烧滴定法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 31, 2025
Implementation date
May 1, 2026
Scope
GB/T 3884.3-2025 is the English-translated version of 铜精矿化学分析方法 第3部分：硫含量的测定 重量法和燃烧滴定法.
GB/T 3884.3-2025 is the Chinese standard "Methods for chemical analysis of copper concentrates - Part 3: Determination of sulfur content - Gravimetric method and combustion-titration method".
Its scope clause reads: This document describes methods for determining the sulfur content in copper concentrate and copper slag concentrate using gravimetric and combustion titration methods.
This document applies to the determination of sulfur content in copper concentrate and copper slag concentrate. Method 1.Determination range. 1.00%~42.00%; Method 2.Determination...
Range. 3.00%~42.00%. Method 2 is not applicable to the determination of copper concentrate or copper slag concentrate with fluorine content greater than 1 mg. Its clauses include terms and definitions.
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Document preview — GB/T 3884.3-2025
National Standard of the People's Republic of China
- ICS
- 77.120.30
- Classification
- H 13
- Replacing
- GB/T 3884.3-2012
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4.3 Samples
1 Scope
This document describes methods for determining the sulfur content in copper concentrate and copper slag concentrate using gravimetric and combustion titration methods.
This document applies to the determination of sulfur content in copper concentrate and copper slag concentrate. Method 1.Determination range. 1.00%~42.00%; Method 2.Determination...
Range. 3.00%~42.00%. Method 2 is not applicable to the determination of copper concentrate or copper slag concentrate with fluorine content greater than 1 mg.
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 6682 Specifications and test methods for water used in analytical laboratories
3 Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4 Method 1.Gravimetric Method
4.1 Principle
The sample was uniformly mixed with anhydrous sodium carbonate-zinc oxide sintering agent and calcined at 780°C~800°C. The semi-molten material was then dissolved and leached with hot water.
Barium chloride is used to precipitate sulfate ions in the solution. The precipitate is filtered, washed, ignited, and weighed. The sulfur content of the sample is calculated based on the mass of barium sulfate.
4.2 Reagents
Unless otherwise specified, only reagents confirmed to be of analytical purity or higher shall be used in the analysis.
4.2.1
Water, GB/T 6682, Grade III and above.
4.2.2 Sintering agent
Mix 1 part anhydrous sodium carbonate with 1 part zinc oxide, grind finely and mix evenly.
4.2.3
Hydrochloric acid (rho=1.19g/mL).
4.2.4
Barium chloride solution (100g/L), used after filtration.
4.2.5 Silver nitrate solution (10 g/L)
Weigh 1 g of silver nitrate, dissolve it in a small amount of water, and dilute with water to 100 mL. Mix well. For every 100 mL of silver nitrate solution...
Add 3 to 4 drops of nitric acid (rho = 1.42 g/mL) to the silver acid solution.
4.2.6
Methyl orange indicator (1 g/L).
4.3 Samples
4.3.1
The particle size of the sample should not exceed 100 µm. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
Referenced standards
Normative references
Editions of GB/T 3884.3
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 3884.3-2025 | Methods for chemical analysis of copper concentrates - Part 3: Determination of sulfur content - Gravimetric method and combustion-titration method | current edition | Current |
| GB/T 3884.3-2012 | Methods for chemical analysis of copper concentrates -- Part 3: Determination of sulfur content -- Gravimetric method and Combustion-titration method | previous edition | In force |
| GB/T 3884.3-2000 | Methods for chemical analysis of copper concentrates. Determination of sulfur content | previous edition | Obsolete |
This page sells the current edition, GB/T 3884.3-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
GB/T 3884.1-2025 — Methods for chemical analysis of copper concentrates - Part 1: Determination of copper content - Iodine titration method and electrogravimetric method
GB/T 3884.10-2012 — Methods for chemical analysis of copper concentrates -- Part 10: Determination of Antimony content -- Hydride generation atomic fluorescence spectrometry method
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