GB/T 15072.8-2008 in English

VALID

Test method of precious metal alloys - Determination of copper content for gold palladium and silver alloys - Complexometric return titration using thiourea releasing EDTA

Issued on:2008-03-31
Implemented on:2008-09-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $90.00
$88.00

Standard No:	GB/T 15072.8-2008
Document status:	VALID
Title in English:	Test method of precious metal alloys - Determination of copper content for gold palladium and silver alloys - Complexometric return titration using thiourea releasing EDTA
Title in Chinese:	贵金属合金化学分析方法金、钯、银合金中铜量的测定硫脲析出EDTA络合返滴定法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2008-03-31
Implemented on:	2008-09-01
Superseding:	GB/T 15072.8-1994 Gold,Palladium and silver alloys-Determination of copper content
ICS Classification:	77.120.99-Other non-ferrous metals and their alloys
Chinese Classification:	H68-Precious metals and their alloys
Professional Classification:	GB-National Standard
Related Keywords:	gold palladium copper content test method complexometric return titration precious metal
Related Topics:	strontium edta back titration Complexation silver sulfide complex edta sulfur Chemical Analysis Methods of Precious Metal Catalysts precious metal alloy Copper titration analysis method Analysis method of thiourea edta concentration edta concentration fixed sulfur silver thiosulfide complexes Complex analysis edta silver copper complex Alloy metal detection method back titration Metal Alloy Testing Methods Determination of zirconium in alloy by edta Analysis in Titration edta indirect complexometric titration edta complexometric titration edta back titration for the determination of cobalt EDTA Titration Copper Efficient analysis of precious metals EDTA complex palladium Titrimetric analysis of copper edta complexometric titration palladium edta online banking edta palladium complexometric titration edta indirect complexometric titration edta complexation Precious Metal Analysis Group edta palladium complexometric titration Palladium Titration Test Method Copper chemical analysis method edta titration Determination method of metal compound silver complexed with edta Analysis of Copper by Titration gold complex palladium metal by titration Methods for Chemical Analysis of Precious Metal Alloys - Amount of Gadolinium and Beryllium in Gold Alloys Metal Analyzer edta complexed silver titration analysis edta precipitation Chemical Analysis Methods of Precious Metal Alloys copper edta network edta palladium complex Alloy Composition Determination Method Commonly used methods in titration analysis Analytical Methods for Precious Metals Chemical Analysis of Precious Metals Noble metal thiourea analysis of precious metals How to analyze precious metals palladium edta Palladium Complex edta copper GB/T 15072.8 GB/T 15072.8-1994 GB/T 15072.8-2008 Blister copper chemical analysis method gold palladium content Gold and silver assay methods Valence of sulfur in thiourea metal precipitation phase Error analysis of water hardness measured by edta titration method Chemical principles of EDTA titration Titration analysis method of silver Analytical methods for organometallic complexes European standard copper alloy analysis method Gold chemical analysis methods Advantages and Disadvantages of Metal Analysis Methods in Water Copper complex titration Guiyan gold detection method What are the methods for measuring metal compounds? Copper alloy composition titration test

《GB/T 15072.8-2008贵金属合金化学分析方法金、钯、银合金中铜量的测定硫脲析出EDTA络合返滴定法》由TC243（全国有色金属标准化技术委员会）归口，TC243SC5（全国有色金属标准化技术委员会贵金属分会）执行，主管部门为中国有色金属工业协会。
本标准规定了金、钯、银合金中铜量的测定。本部分代替ＧＢ／Ｔ１５０７２．８―１９９４《贵金属及其合金化学分析方法　金、钯、银合金中铜量的测定》。
本部分与ＧＢ／Ｔ１５０７２．８―１９９４相比，主要有如下变动：
―――标准名称由ＧＢ／Ｔ１５０７２．８―１９９４《贵金属及其合金化学分析方法　金、钯、银合金中铜量的测定》变更为《贵金属合金化学分析方法　金、钯、银合金中铜量的测定　硫脲析出ＥＤＴＡ络合返滴定法》；
―――按新标准编写的要求对溶液的配制、浓度的表示等进行了修订；
―――将原标准范围ＡｕＡｇＣｕ２０-２０、ＡｕＡｇＣｕ３５-５、ＡｕＡｇＣｕ１３-２０、ＡｕＣｕＮｉＺｎ２２-２．５�玻薄�
ＡｕＣｕＮｉＺｎ３０-３-０．７、ＡｕＣｕＮｉＺｎＭｎ１８-１．８-０．７-０．０３、ＰｄＡｇＣｕ６５-２０、ＰｄＡｇＣｕ５４-２１、ＰｄＡｇＣｕ６８�玻玻贰�ＰｄＡｇＣｕ５２-２８、ＰｄＡｇＣｕ５８-３２、ＰｄＡｇＣｕＡｕＰｔＺｎ３０-１４-１０-１０-１、ＡｇＣｕ１０、ＡｇＣｕ１２．５、ＡｇＣｕＶ１０-０．２、ＡｇＣｕＮｉＡｌ２０-２-１修改为本标准适用于ＡｕＡｇＣｕ、ＡｕＡｇＣｕＧｄ、ＡｕＣｕＮｉＺｎ、ＡｕＣｕＮｉＺｎＭｎ、ＰｄＡｇＣｕ、ＰｄＡｇＣｕＡｕＰｔＺｎ、ＡｕＣｕＰｔＡｇＺｎ、ＡｇＣｕ、ＡｇＣｕＶ、ＡｇＣｕＮｉＡｌ合金中铜含量的测定；测定范围（质量分数）：４％～３５％；
―――按照ＧＢ／Ｔ２０００１．４―２００１格式要求重新编写。

Scope

This part specifies the method for the determination of copper content in gold, palladium and silver alloys. This section applies to the determination of copper content in AuAgCu, AuAgCuGd, AuCuNiZn, AuCuNiZnMn, PdAgCu, PdAgCuAuPtZn, AgCu, AgCuV, AgCuNiAl alloys. Measuring range (mass fraction): 4% to 35%.

More samples: GB 50021-2001(2009) YD/T 3934-2021 GB 18306-2015

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