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SN/T 4767-2017 English PDF

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US$139.00 · In stock
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SN/T 4767-2017: Determination of copper content in the copper concentrates and copper ores by potentiometric titration method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4767-2017	139	Add to Cart	2 days	Determination of copper content in the copper concentrates and copper ores by potentiometric titration method	Valid

Similar standards

GB/T 4103.14 GB/T 5121.27 GB/T 5121.1 SN/T 5697 SN/T 5625 SN/T 4760

Basic data

Standard ID: SN/T 4767-2017 (SN/T4767-2017)
Description (Translated English): Determination of copper content in the copper concentrates and copper ores by potentiometric titration method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: H13
Word Count Estimation: 6,643
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 228
Issuing agency(ies): General Administration of Customs

SN/T 4767-2017: Determination of copper content in the copper concentrates and copper ores by potentiometric titration 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.
(Determination of copper content in silver and copper concentrates - Automatic potentiometric titration) People's Republic of China entry and exit inspection and quarantine industry standards Determination of copper content in copper ore and copper concentrates Automatic potentiometric titration Released on.2017-05-12 2017-12-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued Entry-Exit Inspection and Quarantine Industry Standard Determination of copper content in copper ore and copper concentrates Automatic potentiometric titration China Standard Press Publishing First edition, April.2018

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Xinjiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Fujian Entry and Exit Inspection of the People's Republic of China Epidemic situation. The main drafters of this standard. Lu Xinming, Sun Chunxiao, Wang Dong, Tian Yanhe, He Xiujuan, Zhong Jianhai, Guan Qi, Pan Cunyan. Determination of copper content in copper ore and copper concentrates Automatic potentiometric titration

1 Scope

This standard specifies the potentiometric titration method for the determination of copper in imported copper concentrates and copper ore. This standard is applicable to the determination of copper content in copper concentrates and copper ore, and the measurement range is from 1.00% to 40.0%.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T.2007.1 Bulk mineral products sampling, sample preparation, manual sample preparation method GB/T 6682 Specifications and experimental methods for experimental water (GB/T 6682-2008, ISO 3696.1987, MOD) JJF814 automatic potentiometric titrator

3 method summary

After the sample is decomposed by hydrochloric acid and nitric acid, the pH of the solution is adjusted to 3.0-4.0 with ammonia water and acetic acid solution, and the iron is masked with ammonium hydrogen fluoride. The potassium iodide reacted with divalent copper, and the precipitated iodine was titrated with a sodium thiosulfate standard solution, and the potential jump end was determined by an automatic potentiometric titrator.

4 instruments

4.1 Potentiometric titrator. With titration unit and titration control device, equipped with redox electrode. Comply with JJF814 automatic potentiometric titrator Quantity procedure. Refer to Appendix A for instrument operating parameters. 4.2 Analytical balance. The sensitivity is 0.1 mg.

5 reagents and materials

Unless otherwise stated, the reagents used were of analytical grade and the water was secondary water as specified in GB/T 6682. 5.1 Hydrochloric acid (ρ=1.19g/mL). 5.2 Nitric acid (ρ = 1.42 g/mL). 5.3 Ammonia (1 1). 5.4 Glacial acetic acid (1 1). 5.5 Perchloric acid (ρ = 1.67 g/mL). 5.6 Potassium iodide. 5.7 Saturated Bromine Water. 5.8 Ammonium hydrogen fluoride. 5.9 sodium thiosulfate. 5.10 Anhydrous sodium carbonate. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4767-2017_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4767-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 4767-2017_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4767-2017_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.