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GB/T 15072.11-2008: Test method of precious metal alloys -- Determination of gadolinium and beryllium contents for gold alloys -- Inductively coupled plasma atomic emission spectrometry
Status: Valid GB/T 15072.11: Evolution and historical versions
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| GB/T 15072.11-2008 | English | 189 |
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Test method of precious metal alloys -- Determination of gadolinium and beryllium contents for gold alloys -- Inductively coupled plasma atomic emission spectrometry
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GB/T 15072.11-2008
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| GB/T 15072.11-1994 | English | 199 |
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Gold alloys-Determination of gadolinium content
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GB/T 15072.11-1994
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Basic data | Standard ID | GB/T 15072.11-2008 (GB/T15072.11-2008) | | Description (Translated English) | Test method of precious metal alloys -- Determination of gadolinium and beryllium contents for gold alloys -- Inductively coupled plasma atomic emission spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 8,857 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 15072.11-1994 | | Quoted Standard | YS/T 371 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.5 (Total No.118) | | 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 method for the determination of beryllium and indium gadolinium amount of gold alloys. This section applies to AuAgCuMnGd, AuAgCuGd, measuring the amount of gadolinium and beryllium alloys AuNiGd and AuBe. Measuring range (mass fraction): 0. 1% to 2%. | GB/T 15072.11-2008: Test method of precious metal alloys -- Determination of gadolinium and beryllium contents for gold alloys -- Inductively coupled plasma atomic emission spectrometry
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Test method of precious metal alloys. Determination of gadolinium and beryllium contents for gold alloys. Inductively coupled plasma atomic emission specterometry
ICS 77.120.99
H68
National Standards of People's Republic of China
Replacing GB/T 15072.11-1994
Precious metal alloys -
Determination of the amount of gadolinium and beryllium alloy of gold
Inductively coupled plasma atomic emission spectrometry
Posted 2008-03-31
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is GB/T 15072-1994 "precious metals and their alloys -" (all parts) the integration of amendments into
Part 19.
--- GB/T 15072.1-2008 Chemical analysis of ferrous sulfate measured electrical precious metal alloys Gold, platinum, palladium, gold content alloys
Titration;
--- GB/T 15072.2-2008 Methods for chemical analysis of precious metal alloys silver alloys Determination of silver content of sodium chloride potential drop
Titration;
--- GB/T 15072.3-2008 Methods for chemical analysis of precious metal alloys of gold, platinum, palladium, platinum alloys determining the amount of potassium permanganate
Current titration;
--- GB /15072.4-2008 Methods for chemical analysis of precious metal alloys of palladium, silver-palladium alloy determining the amount of T-dimethyl glyoxal
Gravimetric method;
--- GB/T 15072.5-2008 Methods for chemical analysis of precious metal alloys of gold, measuring the potential of potassium iodide palladium alloy of silver content drops
Titration;
--- GB/T 15072.6-2008 precious metal alloys - Determination of platinum, palladium, iridium alloy in determining the amount of ferrous sulfate Current
titration;
--- GB/T 15072.7-2008 precious metal alloys - Gold alloys chromium and iron content - Inductively coupled plasma
Plasma atomic emission spectrometry;
--- GB/T 15072.8-2008 precious metal alloys - gold, palladium, silver and copper alloys - Determination of the amount of precipitation thiourea
EDTA complexometric back titration;
--- GB/T 15072.9-2008 precious metal alloys - Gold alloys - Determination of the amount of indium by EDTA back drop
Titration;
--- GB/T 15072.10-2008 precious metal alloys - Gold alloys - Determination of nickel by EDTA back drop
Titration;
--- GB/T 15072.11-2008 precious metal alloys - gold alloy of gadolinium and beryllium content - Inductively coupled plasma
Plasma atomic emission spectrometry;
--- GB T 15072.12-2008 precious metal alloys - Silver alloys - Determination of vanadium content/hydrogen peroxide spectrophotometer
Law degree;
--- GB/T 15072.13-2008 precious metal alloys - Tin in silver, cerium and lanthanum content - Inductively coupled
Plasma atomic emission spectrometry;
--- GB/T 15072.14-2008 precious metal alloys - silver alloy of aluminum and nickel content - Inductively coupled plasma
Plasma atomic emission spectrometry;
--- GB T 15072.15-2008 precious metal alloys - gold, silver, palladium alloy of nickel, zinc and manganese contents /
Inductively coupled plasma atomic emission spectrometry;
--- GB/T 15072.16-2008 precious metal alloys - gold alloy of copper and manganese content - Inductively coupled plasma
Plasma atomic emission spectrometry;
--- GB/T 15072.17-2008 precious metal alloys - Determination of tungsten content of a platinum alloy of tungsten trioxide weight
Method;
--- GB/T 15072.18-2008 precious metal alloys - Gold alloys of zirconium and gallium content - Inductively coupled plasma
Plasma atomic emission spectrometry;
--- GB/T 15072.19-2008 precious metal alloys - silver vanadium alloys and magnesium content - Inductively coupled plasma
Plasma atomic emission spectrometry.
This section GB/T 15072-2008 Part 11.
This Part replaces GB/T 15072.11-1994 "chemical analysis of precious metals and their alloys - Gold alloys - Determination of the amount of gadolinium."
This section compared with the GB/T 15072.11-1994, have the following main changes.
--- Name from "precious metals and their alloys - Gold alloys - Determination of the amount of gadolinium" to "precious metal alloys -
Gold alloys of gadolinium and beryllium content - Inductively coupled plasma atomic emission spectrometry ";
--- By inductively coupled plasma atomic spectrophotometry instead of the original criteria used emission spectroscopy;
--- The scope of the original standard method AuAgCuGd35-5-0.4, AuAgCuMnGd33.5-3-2.5-0.4 alloy expansion
To AuAgCuMnGd, AuAgCuGd, AuNiGd and AuBe series alloys, and wherein AuNiGd AuBe to add
series;
--- Gadolinium measurement range (mass fraction) from 0.3% to 0.6% increase in adjusted from 0.1% to 2%;
--- Increasing the amount of beryllium simultaneous determination of measurement range (mass fraction) of 0.1% to 2%;
--- Repeatability and allows the use of relatively poor poor allowed to replace the original criteria used.
Appendix A of this section is an informative annex.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is your research Platinum Ltd. is responsible for drafting.
The main drafters of this section. Ma Yuan, Fang Wei, Li Kai, Wang Ying Jin, Luo Yijiang, Xu Guang.
This part certifier. and He Ping, a single cloud.
This part of the standard replaces the previous editions are.
--- GB/T 15072.11-1994.
Precious metal alloys -
Determination of the amount of gadolinium and beryllium alloy of gold
Inductively coupled plasma atomic emission spectrometry
1 Scope
This section provides the determination of gold and beryllium alloy of gadolinium amount.
This section applies to AuAgCuMnGd, AuAgCuGd, measuring the amount of gadolinium and beryllium alloys AuNiGd and AuBe. Measurement range
(Mass fraction). 0.1% to 2%.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
371 precious metal alloys - General rules and regulations YS/T
3 Method summary
Samples with hydrochloric acid - nitric acid mixture is dissolved in hydrochloric acid and precipitation of silver, gold sulfite reducing separation, inductively coupled plasma atomic emission
Spectroscopy (hereinafter referred to as ICP-AES) was measured to calculate the mass fraction of gadolinium and beryllium.
4 Reagents and materials
Unless otherwise indicated, this part of the reagents and materials shall comply with the provisions of YS/T 371's.
4.1 Argon ((Ar) ≥99.95%).
4.2 hydrochloride (ρ1.19g/mL).
Nitrate 4.3 (ρ1.42g/mL).
4.4 hydrochloric acid - nitric acid mixture (6 + 1), when using the existing service.
Hydrochloride 4.5 (1 + 9).
4.6 sulfite (to SO2, at a level of not less than 6%).
4.7 gadolinium stock standard solution. Weigh 0.1000g metal gadolinium ((Gd) ≥99.99%), placed in 200mL beaker. Added 10mL
Hydrochloric acid (4.5), cover the surface of the pan, over low heat until dissolved completely. Cooled to room temperature, moved with hydrochloric acid (4.5) 100mL volumetric flask and dilute
Explanation to the mark. Mix well. This solution 1mL 1mg containing gadolinium.
4.8 Beryllium stock standard solution. Weigh 0.2776g beryllium oxide ((BeO) ≥99.95%), placed in 200mL beaker. Added 10mL
Water, a solution of hydrochloric acid (4.5), cover the surface of the pan, over low heat until dissolved completely. Cooled to room temperature and transferred to 100mL volumetric flask with hydrochloric acid (4.5)
And diluted to the mark. Mix well. This solution 1mL 1mg containing beryllium.
5 Instruments
ICP-AES instrument. Under optimum working conditions for those who can reach the following indicators can be used.
5.1 source. argon plasma light source, the generator is not less than the maximum output power of 1.3kW.
5.2 Resolution. Optical resolution of about 200nm is not more than 0.010nm; optical resolution is not more than about 400nm
0.020nm.
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