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GB/T 15072.19-2008: Test method of precious metal alloys -- Determination of vanadium and magnesium contents for silver alloys -- Inductively coupled plasma atomic emission spectrometry
Status: Valid GB/T 15072.19: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15072.19-2008 | English | 189 |
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Test method of precious metal alloys -- Determination of vanadium and magnesium contents for silver alloys -- Inductively coupled plasma atomic emission spectrometry
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GB/T 15072.19-2008
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| GB/T 15072.19-1994 | English | 199 |
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Gold alloys-Determination of chromium content.
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GB/T 15072.19-1994
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Basic data | Standard ID | GB/T 15072.19-2008 (GB/T15072.19-2008) | | Description (Translated English) | Test method of precious metal alloys -- Determination of vanadium and magnesium contents for silver 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 | 8,834 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-09-01 | | 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 vanadium and magnesium alloy of silver content. This section applies to the determination AgMgNi AgCuV and vanadium alloys and magnesium content. Measuring range (mass fraction): 0. 05% to 1%. | GB/T 15072.19-2008: Test method of precious metal alloys -- Determination of vanadium and magnesium contents for silver alloys -- Inductively coupled plasma atomic emission spectrometry
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Test method of precious metal alloys. Determination of vanadium and magnesium contents for silver alloys. Inductively coupled plasma atomic emission spectrometry
ICS 77.120.99
H68
National Standards of People's Republic of China
Precious metal alloys -
Determination of silver alloy vanadium and magnesium content
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.
Determination --- GB/T 15072.1-2008 Methods for chemical analysis of precious metal alloys of gold, platinum, palladium, gold alloy amount of ferrous sulfate
Potentiometric 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 19.
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. Liu Wei, Fang Wei, Li Kai, He Jiao, Xu Guang, Li Yonglan.
This part certifier. and He Ping, Sun Xiaodong.
This section first release.
Precious metal alloys -
Determination of silver alloy vanadium and magnesium content
Inductively coupled plasma atomic emission spectrometry
1 Scope
This section provides the determination of silver alloy of vanadium and magnesium content.
This section applies to the determination AgCuV and AgMgNi alloy vanadium and magnesium content, the measurement range (mass fraction). 0.05% to 1%.
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
Sample dissolved in nitric acid, hydrochloric acid precipitation of silver chloride formed was isolated by filtration silver, inductively coupled plasma atomic emission spectrometry (hereinafter
Acronym ICP-AES) was measured to calculate the mass fraction of vanadium and magnesium.
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).
Hydrochloride 4.4 (1 + 9).
4.5 V stock standard solution. Weigh 0.1000g vanadium ((V) ≥99.99%), placed in 200mL beaker, add 5mL hydrochloric acid
(4.2), cover the surface of the pan, over low heat until dissolved completely. Cooled to room temperature, moved with hydrochloric acid (4.4) 100mL volumetric flask and dilute to
Scale. Mix well. 1mL solution containing 1mg vanadium.
4.6 Magnesium stock standard solution. Weigh 0.3469g magnesium carbonate ((MgCO3) ≥99.95%, advance after 1000 ℃ burning 1h, placed
Desiccator, cool to room temperature), placed in 200mL beaker. 5mL of water was added, 3mL hydrochloric acid was added slowly (4.2), covered with a watch glass,
Warmed to completely dissolve the reaction to be slowed. Cooled to room temperature, moved with hydrochloric acid (4.4) 100mL volumetric flask and dilute to volume. mix
uniform. This solution 1mL 1mg containing magnesium.
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 of about 400nm, there is little
To 0.020nm.
5.3 Instrument stability. stability within the instrument 1h (RSD) less than 2.0%.
5.4 The detection limit of the spectrometer. white liquid detection limit of vanadium and magnesium was no more than 0.05mg/L.
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