Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 4：Determination of chlorine ion—Silver chlorine turbidimetric method
Methods for chemical analysis of precious metals alloys electroplating wastewater - Part 4: Determination of chlorine ion - Silver chlorine turbidimetric 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 chlorine ion in precious metals alloys electroplating and electroforming wastewater using silver chlorine turbidimetric method.
This document is applicable to the determination of chloride ion in precious metals alloys electroplating and electroforming wastewater. Determination range: 1.0 g/L to 50.0 g/L for mass concentration of chloride ion.
2 Normative references
The following documents contain provisions 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
Chloride ion solution is in ethanol medium, in which chlorine and silver nitrate form silver chloride emulsion. Measure the absorbance at the wavelength of 420 nm by spectrophotometer, and calculate the mass concentration of chloride ion.
Contents
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Samples
8 Test procedure
9 Test data processing
10 Precision
11 Test report
Annex A (Informative) Original data of precision test
GB/T 43753.4-2024 Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 4：Determination of chlorine ion—Silver chlorine turbidimetric method (English Version)
Standard No.
GB/T 43753.4-2024
Status
valid
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Implemented on
2024-10-1
Delivery
via email in 1~3 business day
Detail of GB/T 43753.4-2024
Standard No.
GB/T 43753.4-2024
English Name
Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 4：Determination of chlorine ion—Silver chlorine turbidimetric method
Methods for chemical analysis of precious metals alloys electroplating wastewater - Part 4: Determination of chlorine ion - Silver chlorine turbidimetric 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 chlorine ion in precious metals alloys electroplating and electroforming wastewater using silver chlorine turbidimetric method.
This document is applicable to the determination of chloride ion in precious metals alloys electroplating and electroforming wastewater. Determination range: 1.0 g/L to 50.0 g/L for mass concentration of chloride ion.
2 Normative references
The following documents contain provisions 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
Chloride ion solution is in ethanol medium, in which chlorine and silver nitrate form silver chloride emulsion. Measure the absorbance at the wavelength of 420 nm by spectrophotometer, and calculate the mass concentration of chloride ion.
Contents of GB/T 43753.4-2024
Contents
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Samples
8 Test procedure
9 Test data processing
10 Precision
11 Test report
Annex A (Informative) Original data of precision test
