SN/T 2004.3-2005 Determination of Chromium(VI) in electrical and electronic equipment - Part 3: 1 5-Diphenylcarbohydrazide spectrophotometric method (English Version)
This part specifies the 1.5-diphenylcarbahydrazide spectrophotometric determination method for chromium (VI) in electrical and electronic equipment.
This part is applicable to determination of chromium (VI) in electrical and electronic equipment.
2 Method Summary
The water-soluble or water-insoluble chromium (VI) compound is leached from the sample by alkaline leach liquor; the chromium (VI) in leach liquor react with 1.5-diphenylcarbahydrazide in acid solution and generate claret-colored complex, then spectrophotometric determination is carried out where the wavelength is 540nm.
3 Reagents and Materials
Foreword I 1 Scope 2 Method Summary 3 Reagents and Materials 4 Equipment 5 Analysis Procedures
Standard
SN/T 2004.3-2005 Determination of Chromium(VI) in electrical and electronic equipment - Part 3: 1 5-Diphenylcarbohydrazide spectrophotometric method (English Version)
Standard No.
SN/T 2004.3-2005
Status
abolished
Language
English
File Format
PDF
Word Count
1500 words
Price(USD)
184.0
Implemented on
2006-1-18
Delivery
via email in 1 business day
Detail of SN/T 2004.3-2005
Standard No.
SN/T 2004.3-2005
English Name
Determination of Chromium(VI) in electrical and electronic equipment - Part 3: 1 5-Diphenylcarbohydrazide spectrophotometric method
Chinese Name
电子电气产品中六价铬的测定 第3部分:二苯碳酰二肼分光光度法
Chinese Classification
L04
Professional Classification
SN
ICS Classification
Issued by
AQSIQ
Issued on
2005-7-18
Implemented on
2006-1-18
Status
abolished
Superseded by
Superseded on
Abolished on
2017-12-22
Superseding
Language
English
File Format
PDF
Word Count
1500 words
Price(USD)
184.0
Keywords
SN/T 2004.3-2005, SN 2004.3-2005, SNT 2004.3-2005, SN/T2004.3-2005, SN/T 2004.3, SN/T2004.3, SN2004.3-2005, SN 2004.3, SN2004.3, SNT2004.3-2005, SNT 2004.3, SNT2004.3
Introduction of SN/T 2004.3-2005
1 Scope
This part specifies the 1.5-diphenylcarbahydrazide spectrophotometric determination method for chromium (VI) in electrical and electronic equipment.
This part is applicable to determination of chromium (VI) in electrical and electronic equipment.
2 Method Summary
The water-soluble or water-insoluble chromium (VI) compound is leached from the sample by alkaline leach liquor; the chromium (VI) in leach liquor react with 1.5-diphenylcarbahydrazide in acid solution and generate claret-colored complex, then spectrophotometric determination is carried out where the wavelength is 540nm.
3 Reagents and Materials
Contents of SN/T 2004.3-2005
Foreword I
1 Scope
2 Method Summary
3 Reagents and Materials
4 Equipment
5 Analysis Procedures
