Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 3：Determination of sulfate content—Barium sulphate gravimetric method
Methods for chemical analysis of precious metals alloys electroplating wastewater - Part 3: Determination of sulfate content - Barium sulphate gravimetric method
WARNING: Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document describes the method for determination of sulfate content in precious metals alloys electroplating and electroforming wastewater using barium sulphate gravimetric method.
This document is applicable to the determination of sulfate content in precious metals alloys electroplating and electroforming wastewater. Determination range: 0.01g/L to 18.00g/L for mass concentration of sulfate radical.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
Gold and other elements are reduced with hydroxylamine hydrochloride, sulfate radical and barium chloride form barium sulfate precipitation, which is separated from iron and copper ions, filtered, washed, and burned to a constant amount. The sulfate content is expressed by the content of sulfate radical, and the mass concentration of sulfate radical is calculated.
Contents
Foreword i
1 Scope
2. Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Samples
8 Test procedures
9 Test data processing
10 Precision
11 Test report
Annex A (Informative) Original data of precision test
GB/T 43753.3-2024 Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 3：Determination of sulfate content—Barium sulphate gravimetric method (English Version)
Standard No.
GB/T 43753.3-2024
Status
valid
Language
English
File Format
PDF
Word Count
6500 words
Price(USD)
195.0
Implemented on
2024-10-1
Delivery
via email in 1~3 business day
Detail of GB/T 43753.3-2024
Standard No.
GB/T 43753.3-2024
English Name
Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 3：Determination of sulfate content—Barium sulphate gravimetric method
Methods for chemical analysis of precious metals alloys electroplating wastewater - Part 3: Determination of sulfate content - Barium sulphate gravimetric method
WARNING: Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document describes the method for determination of sulfate content in precious metals alloys electroplating and electroforming wastewater using barium sulphate gravimetric method.
This document is applicable to the determination of sulfate content in precious metals alloys electroplating and electroforming wastewater. Determination range: 0.01g/L to 18.00g/L for mass concentration of sulfate radical.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
Gold and other elements are reduced with hydroxylamine hydrochloride, sulfate radical and barium chloride form barium sulfate precipitation, which is separated from iron and copper ions, filtered, washed, and burned to a constant amount. The sulfate content is expressed by the content of sulfate radical, and the mass concentration of sulfate radical is calculated.
Contents of GB/T 43753.3-2024
Contents
Foreword i
1 Scope
2. Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Samples
8 Test procedures
9 Test data processing
10 Precision
11 Test report
Annex A (Informative) Original data of precision test
