GB/T 3884.14-2012 English PDF

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GB/T 3884.14-2012: Methods for chemical analysis of copper concentrates -- Part 14: Determination of gold and silver -- Fire assay gravimetric and flame atomic absorption spectrometric method
Status: Valid

GB/T 3884.14: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3884.14-2012	634	Add to Cart	3 days	Methods for chemical analysis of copper concentrates -- Part 14: Determination of gold and silver -- Fire assay gravimetric and flame atomic absorption spectrometric method	Valid
GB/T 3884.14-1986	RFQ	ASK	3 days	Methods for chemical analysis of copper concentrates--The fire assaying methods for the determination of gold and silver content	Obsolete

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Basic data

Standard ID: GB/T 3884.14-2012 (GB/T3884.14-2012)
Description (Translated English): Methods for chemical analysis of copper concentrates -- Part 14: Determination of gold and silver -- Fire assay gravimetric and flame atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.60
Word Count Estimation: 32,366
Quoted Standard: GB/T 27674-2011; ISO 385.1-1984; ISO 648-1977; ISO 1042-1998; ISO 3696-1987; ISO 4787-1984
Adopted Standard: ISO 10378-2005, IDT
Regulation (derived from): National Standards Bulletin No. 41 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the copper sulfide gold, silver content determination method fire assay gravimetric and flame atomic absorption spectrometry. This section applies to the copper content of 15 % to 60 % of the copper sulfide gold and silver content

GB/T 3884.14-2012: Methods for chemical analysis of copper concentrates -- Part 14: Determination of gold and silver -- Fire assay gravimetric and flame atomic absorption spectrometric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS77.120.60 H13 National Standards of People's Republic of China GB/T 3884.14-2012/ISO 10378.2005 Methods for chemical analysis of copper concentrates Part 14. Determination of the amount of gold and silver Fire assay gravimetric and Atomic Absorption Spectrometry Part 14. Determinnationofgoldandsilver- (ISO 10378.2005, Coppersulfideconcentrate- absorptionspectrmetricmethod, IDT) Issued on. 2013-10-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 3884 "chemical analysis of copper concentrate" is divided into 14 parts. --- Part 1. Determination of copper content iodometry; --- Part 2. Determination of the amount of gold and silver by flame atomic absorption spectroscopy and fire assay; --- Part 3. Determination of sulfur content - Gravimetric and combustion - titration; --- Part 4. Determination of magnesium oxide content - Flame atomic absorption spectrometry; --- Part 5. Determination of the amount of fluorine ion selective electrode method; --- Part 6. Determination by flame atomic lead, zinc, cadmium and nickel absorption spectrometry; --- Part 7. Determination of lead content Na2EDTA titration; --- Part 8. Determination of zinc contents Na2EDTA titration; --- Part 9. Determination of the amount of arsenic and bismuth hydride generation - atomic fluorescence spectrometry, potassium bromate titration and diethyl ammonia Silver group acid spectrophotometry; --- Part 10. Determination of antimony content hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of mercury content - Cold atomic absorption spectrometry; --- Part 12. Determination of the amount of fluorine and chlorine ion chromatography; --- Part 13. Determination of the amount of copper electrolysis; --- Part 14. Determination of the amount of gold and silver fire assay gravimetric method and atomic absorption spectrometry. This is Part 14 GB/T 3884's. Rules in this section in accordance with GB/T 1.1-2009 given draft. 2005 "in the copper sulphide concentrate Determination of gold and silver fire assay and atomic absorption. the use of ISO 10378 in this section use the translation method equivalent Spectroscopy. " This part of ISO 10378.2006 main differences are as follows. --- English name made the change; --- With a decimal point instead of a comma as the decimal point in the international standard ",". ","; --- With a period instead of a full stop in the international standard. "". ""; --- With "this Part" instead of "this International Standard"; --- According to Chinese customary change the standard name; --- Remove the cover of the international standards, directory, foreword and introduction. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Daye Nonferrous Metals Group Holdings Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality. Participated in the drafting of this section. Hunan Nonferrous Metal Research Institute. The main drafters of this Part. Costume Zhao Junfeng, Hujun Kai, Yuangong Qi, Wang Yongbin, new Feng, Li Bing. GB/T 3884.14-2012/ISO 10378.2005 Methods for chemical analysis of copper concentrates Part 14. Determination of the amount of gold and silver Fire assay gravimetric and Atomic Absorption Spectrometry

1 Scope

This section GB/T 3884 provisions of the sulfide copper concentrate gold, silver content determination --- fire assay gravimetric and flame atomic absorption Close spectrometry. This section applies to the determination of copper content of 15% to 60% of the copper sulphide concentrate gold and silver content of the determination of the range of Au0.5g/t ~ 300.0g/t, Ag25g/t ~ 1500g/t.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 27674-2011 copper sulfide, determination of lead and zinc concentrate sample hygroscopic moisture weight method (ISO 9599.1991, IDT) ISO 385.1. 1984 Laboratory glassware Burettes - Part 1. General requirements (Laboratoryglassware- Burettes-Part 1. Generalrequirements) ISO 648. 1977 Laboratory glassware single pipette (Laboratoryglassware-One-markpipettes) ISO 1042.1998 scale laboratory glassware single flask (Laboratoryglassware-One-markvolumetric flasks) ISO 3696. 1987 laboratory analysis of water specifications and test methods (1987, Waterforanalyticallaboratoryuse- Specificationandtestmethods) ISO 4787. 1984 laboratory glassware containers capacity use and capacity correction method (Laboratoryglassware- Volumetricglassware-Methodsforuseandtestingofcapacity)

3 Method summary

Fire assay gravimetric method for the determination of gold and silver by 3.1 to 3.5 were firstly isolated from other associated metals, precious metals, and from the enrichment to Precious metals combined grain isolated gold. 3.1 melt Sample is mixed with ingredients such as lead oxide, under reducing conditions, for assaying furnace to melt lead capture in a sample of precious metal lead button. 3.2 cupellation Cupellation of lead oxide is melted and buckle in base metal and precious metal separation, thereby forming a combined gold and silver tablets contain small amounts of other metals. 3.3 Gold Gold and silver nitrate dissolved tablets together, separated from the grains together gold, and weighed. If the quality of the gold particles is less than 50μg, then with a mixed acid (4.13) solution GB/T 3884.14-2012/ISO 10378.2005 ......

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