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GB/T 15072.19-2008 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
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: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15072.19-2008	189	Add to Cart	3 days	Test method of precious metal alloys -- Determination of vanadium and magnesium contents for silver alloys -- Inductively coupled plasma atomic emission spectrometry	Valid
GB/T 15072.19-1994	199	Add to Cart	2 days	Gold alloys-Determination of chromium content.	Obsolete

Similar standards

GB/T 17472 GB/T 17473.2 GB/T 17473.5 GB/T 15072.12 GB/T 15072.13 GB/T 15072.11

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

---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.
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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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 15072.19-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 15072.19-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 15072.19-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 15072.19-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 15072.19-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15072.19-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.