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GB/T 7739.8-2022 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7739.8-2022: Methods for chemical analysis of gold concentrates - Part 8: Determination of sulfur content
Status: Valid

GB/T 7739.8: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7739.8-2022	279	Add to Cart	3 days	Methods for chemical analysis of gold concentrates - Part 8: Determination of sulfur content	Valid
GB/T 7739.8-2007	319	Add to Cart	3 days	Methods for chemical analysis of gold concentrates -- Part 8: Determination of sulfur contents	Obsolete

Similar standards

GB/T 42333 GB/T 20899.1 YS/T 254.1 GB/T 7739.10 GB/T 7739.9 GB/T 7739.7

Basic data

Standard ID: GB/T 7739.8-2022 (GB/T7739.8-2022)
Description (Translated English): Methods for chemical analysis of gold concentrates - Part 8: Determination of sulfur content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D46
Classification of International Standard: 73.060.99
Word Count Estimation: 14,192
Date of Issue: 2022-12-30
Date of Implementation: 2023-07-01
Older Standard (superseded by this standard): GB/T 7739.8-2007
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 7739.8-2022: Methods for chemical analysis of gold concentrates - Part 8: Determination of sulfur content

---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.
ICS 73.060.99 CCSD46 National Standards of People's Republic of China Replace GB/T 7739.8-2007 Gold Concentrate Chemical Analysis Methods Part 8.Determination of sulfur content Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method 1 Barium sulfate gravimetric method 1 4.1 Principle 1 4.2 Reagent or material 1 4.3 Instruments and equipment 2 4.4 Sample 2 4.5 Test Step 2 4.6 Test data processing 3 4.7 Precision 3 4.8 Test report 4 5 Method 2 Combustion neutralization titration 4 5.1 Principle 4 5.2 Reagents or materials 4 5.3 Instruments and equipment 5 5.4 Sample 6 5.5 Test Step 7 5.6 Test data processing 7 5.7 Precision 8 5.8 Test report 8 6 Method 3 Determination of available sulfur - combustion neutralization titration method 8 6.1 Principle 8 6.2 Reagents or materials 9 6.3 Instruments and equipment 9 6.4 Sample 9 6.5 Test procedure 10 6.6 Test data processing 10 6.7 Precision 10 6.8 Test report 11

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document is part 8 of GB/T 7739 "Methods for Chemical Analysis of Gold Concentrates". GB/T 7739 has released the following 13 parts. --- Part 1.Determination of the amount of gold and silver; --- Part 2.Determination of silver content by flame atomic absorption spectrometry; --- Part 3.Determination of the amount of arsenic; --- Part 4.Determination of copper content; --- Part 5.Determination of lead content; --- Part 6.Determination of zinc content; --- Part 7.Determination of iron content; --- Part 8.Determination of sulfur content; --- Part 9.Determination of carbon content; --- Part 10.Determination of antimony content; --- Part 12.Determination of the amount of arsenic, mercury, cadmium, lead and bismuth atomic fluorescence spectrometry; --- Part 13.Determination of the amount of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury by inductively coupled plasma atomic emission spectrometry; --- Part 14.Determination of the amount of thallium Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry. This document replaces GB/T 7739.8-2007 "Methods for Chemical Analysis of Gold Concentrates - Part 8.Determination of Sulfur Content", and GB/T 7739.8- Compared with.2007, except for structural adjustment and editorial changes, the main technical changes are as follows. a) Delete the requirement of "allowable difference" (see 2.6, 3.7 of the.2007 edition); b) The amount of mixed solvents used in method 1 has been increased (see 4.5.3, 2.4.3 of the.2007 edition); c) The ignition temperature of method 1 has been changed (see 4.5.3, 2.4.3 of the.2007 edition); d) Added "repeatability" and "reproducibility" requirements (see 4.7, 5.7, 6.7); e) Changed the intake method of method 2 (see 5.5.3, 3.5.3 of the.2007 edition); f) Added the determination of available sulfur (see Chapter 6). Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Gold Standardization Technical Committee (SAC/TC379). This document is drafted by. Changchun Gold Research Institute Co., Ltd., Zijin Mining Group Co., Ltd., Changchun National Inspection (Jiyuan) Testing Section Technology Co., Ltd., Shenzhen Gold Gold and Silver Jewelry Inspection and Research Center Co., Ltd., Beikuang Testing Technology Co., Ltd., Henan Zhongyuan Gold Smelting Factory Co., Ltd., Shandong Gold Smelting Co., Ltd., Yunnan Gold Mining Group Precious Metal Testing Co., Ltd., Shandong Hengbang Smelting Co., Ltd. Co., Ltd., Luoning Zijin Gold Smelting Co., Ltd. The main drafters of this document. Chen Yonghong, Zhang Yue, Yang Xing, Lu Xingen, Meng Xianwei, Hong Bo, Luo Xiufen, Xiong Minying, Chen Zhuhai, Luo Ronggen, Zhong Yingnan, Mu Yan, Du Yuanyuan, Wang Deyu, Xu Xiaoyan, Lu Mengli, Jiang Yanshui, Xie Fei, Shan Zhaoyong, Zhu Zongbo, Chen Xiaoke, Lu Wenxian, Tang Tiantian, Luan Shaoyu, Su Jing, Liu Junwei. This document was first published in.2007, and this is the first revision.

Introduction

After the raw ore has been sorted and processed, its main components have been enriched in the concentrate, and at the same time, the secondary components of the ore or other associated metals have also been obtained. From recovery to recovery, GB/T 7739 "Chemical Analysis Methods of Gold Concentrate" aims to help gold industrial and mining enterprises to accurately understand the main components and impurities of gold concentrate It is beneficial for enterprises to optimize the control parameters of the dressing and smelting process, accurately control the consumption of chemicals, and reduce the concentration and enrichment of impurity elements in gold concentrate ore dressing and smelting. The interference of the purification process and the improvement of the comprehensive recovery rate of each valuable element can contribute to the efficient recycling and sustainable utilization of comprehensive resources in the entire gold industry. Provide stronger technical support for the sustainable green and healthy development and the construction of smart mines. GB/T 7739 consists of 13 parts. --- Part 1.Determination of the amount of gold and silver. The purpose is to specify the fire test gold gravimetric method, activity Charcoal enrichment-flame atomic absorption spectrometry and activated carbon enrichment-iodometric method and the applicable measurement range of each method. --- Part 2.Determination of the amount of silver flame atomic absorption spectrometry. The purpose is to specify the flame atom for the determination of the amount of silver in gold concentrate Absorption Spectrometry and Applicable Measurement Range. --- Part 3.Determination of the amount of arsenic. The purpose is to specify the silver diethyldithiocarbamate spectrophotometric method for the determination of arsenic in gold concentrate Degree method and potassium dichromate titration method and applicable measurement range of each method. --- Part 4.Determination of the amount of copper. The purpose is to specify the method of flame atomic absorption spectrometry and thiosulfuric acid for the determination of copper in gold concentrate Sodium iodide method and the applicable measurement range of each method. --- Part 5.Determination of the amount of lead. The purpose is to specify the method of atomic absorption spectrometry and ethylenediaminetetraacetic acid for the determination of lead in gold concentrate Disodium titration method and applicable measurement range of each method. --- Part 6.Determination of the amount of zinc. The purpose is to specify the method of atomic absorption spectrometry and ethylenediaminetetraacetic acid for the determination of zinc in gold concentrate Disodium titration method and applicable measurement range of each method. --- Part 7.Determination of iron content. The purpose is to specify the potassium dichromate titration method and applicable determination methods for the determination of iron content in gold concentrate scope. --- Part 8.Determination of sulfur content. The purpose is to specify the barium sulfate gravimetric method and the combustion-acid-base titration method for the determination of sulfur in gold concentrate And the applicable measurement range of each method. --- Part 9.Determination of carbon content. The purpose is to specify the ethanol-ethanolamine-potassium hydroxide titration method and method for the determination of carbon content in gold concentrate Applicable measurement range. --- Part 10.Determination of the amount of antimony. The purpose is to specify the cerium sulfate titration method and the hydride generation-principle method for the determination of antimony in gold concentrate Sub-fluorescence spectroscopy and the applicable measurement range of each method. --- Part 12.Determination of the amount of arsenic, mercury, cadmium, lead and bismuth atomic fluorescence spectrometry. The purpose is to regulate the arsenic, mercury, cadmium, Hydride generation-atomic fluorescence spectrometry for the determination of lead and bismuth and its applicable measurement range. --- Part 13.Determination of the amount of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury Inductively coupled plasma atomic emission spectrometry. The purpose is Inductively coupled plasma atomic emission spectrometry for the determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury in specified gold concentrates and its application range of measurement. --- Part 14.Determination of the amount of thallium Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry. head Inductively Coupled Plasma Atomic Emission Spectrometry and Inductively Coupled Plasma Mass Spectrometry for the Determination of Thallium in Gold Concentrates method and the applicable measurement range of each method. Gold Concentrate Chemical Analysis Methods Part 8.Determination of sulfur content

1 Scope

This document specifies the method for the determination of sulfur content and available sulfur content in gold concentrate. This document is applicable to the determination of sulfur content and available sulfur content in gold concentrate. Measuring range. the mass fraction is 5.00%~50.00%.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 17433 Basic Terms for Chemical Analysis of Metallurgical Products

3 Terms and Definitions

The following terms and definitions defined in GB/T 17433 apply to this document. 3.1 laboratory sample laboratorysample A sample prepared for sending to a laboratory for examination or testing. [Source. GB/T 17433-2014, 2.3.2.1] 3.2 sample testsample A sample that is further prepared from a laboratory sample and can be weighed. [Source. GB/T 17433-2014, 2.3.2.2] 3.3 Sample testportion A certain amount of sample weighed for inspection or observation. [Source. GB/T 17433-2014, 2.3.2.3] 4 Method 1 barium sulfate gravimetric method 4.1 Principle After the sample is semi-melted by the mixed flux of sodium carbonate, zinc oxide and potassium permanganate at 780°C, the soluble matter is dissolved in water, and the sulfur is converted into sulfate radical for further processing. into the solution, and then use barium chloride to precipitate the sulfate radical in the solution. After the precipitate is filtered and burned, it is weighed, and the weight in the sample is calculated according to the mass of barium sulfate. sulfur content. In the tested material, less than 10mg of fluorine does not interfere with the determination. ......

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Question 1: How long will the true-PDF of GB/T 7739.8-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 7739.8-2022_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 7739.8-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 7739.8-2022_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 7739.8-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7739.8-2022 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.