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GB/T 8151.2-2012 English PDF

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Q: Should I purchase the latest version GB/T 8151.2-2012?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8151.2-2012 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.

US$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 8151.2-2012: Methods for chemical analysis of zinc concentrates -- Part 2: Determination of sulfur content -- The combustion neutralization titrimetric method
Status: Valid

GB/T 8151.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8151.2-2012	169	Add to Cart	3 days	Methods for chemical analysis of zinc concentrates -- Part 2: Determination of sulfur content -- The combustion neutralization titrimetric method	Valid
GB/T 8151.2-2000	199	Add to Cart	2 days	Methods for chemical analysis of zinc concentrates -Determination of sulfur content	Obsolete
GB/T 8151.2-1987	RFQ	ASK	3 days	Methods for chemical analysis of zinc concentrates--The combustion-neutralization titrimetric method for the determination of sulfur content	Obsolete

Similar standards

GB/T 8647.11 GB/T 8151.1 GB/T 8151.10 GB/T 8151.22 GB/T 8151.4 GB/T 8151.11

Basic data

Standard ID: GB/T 8151.2-2012 (GB/T8151.2-2012)
Description (Translated English): Methods for chemical analysis of zinc concentrates -- Part 2: Determination of sulfur content -- The combustion neutralization titrimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.60
Word Count Estimation: 7,790
Older Standard (superseded by this standard): GB/T 8151.2-2000
Regulation (derived from): National Standards Bulletin No. 41 of 2012
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 zinc concentrate Determination of sulfur content. This section applies to zinc concentrates Determination of sulfur content. Measuring range: 20. 00% ~ 40. 00%.

GB/T 8151.2-2012: Methods for chemical analysis of zinc concentrates -- Part 2: Determination of sulfur content -- The combustion neutralization titrimetric 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.
ICS77.120.60 H13 National Standards of People's Republic of China Replacing GB/T 8151.2-2000 Methods for chemical analysis of zinc concentrates Part 2. determination of sulfur content Combustion and titration Part 2. Determinationofsulfurcontent- Issued on. 2013-10-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 8151 "Methods for chemical analysis of zinc concentrates" is divided into 20 parts. --- Part 1. Determination of the amount of zinc Na2EDTA precipitation titration and extraction separation Na2EDTA titration; --- Part 2. Determination of sulfur content - Combustion neutralization titration method; --- Part 3. Determination of iron content Na2EDTA titration; --- Part 4. Determination of silicon dioxide content - Molybdenum blue spectrophotometric method; --- Part 5. Determination of lead content by flame atomic absorption spectrometry; --- Part 6. Determination of copper content - Flame atomic absorption spectrometry; --- Part 7. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry and potassium bromate titration; --- Part 8. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 9. Determination of the amount of fluorine ion selective electrode method; --- Part 10. Determination of tin content by hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of antimony content hydride generation - atomic fluorescence spectrometry; --- Part 12. Determination of the amount of silver by flame atomic absorption spectrometry; --- Part 13. Determination of the amount of germanium hydride generation - atomic fluorescence spectroscopy and spectrophotometry Phenylfuoron; --- Part 14. Determination of nickel content by flame atomic absorption spectrometry; --- Part 15. Determination of the amount of mercury atomic fluorescence spectrometry; --- Part 16. Determination of cobalt content by flame atomic absorption spectrometry; --- Part 17. Determination of the amount of zinc hydroxide precipitation -Na2EDTA titration; --- Part 18. Determination of the amount of zinc ion exchange -Na2EDTA titration; --- Part 19. Determination of the amount of gold and silver gray Chuihuo lead analysis or assay and flame atomic absorption spectrometry; --- Part 20. Copper, lead, iron, arsenic, cadmium, antimony, calcium, magnesium content - Inductively coupled plasma atomic emission spectrometry. This is Part 2 GB/T 8151's. Rules in this section in accordance with GB/T 1.1-2009 given draft. This Part replaces GB/T 8151.2-2000 "Methods for chemical analysis of zinc concentrates - Determination of sulfur content." And GB/T 8151.2-2000 Compared to the main changes are as follows. --- Text format has been modified; --- Added precision and test reports. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. MCC Huludao Nonferrous Metals Group Co., Ltd. This section drafted by. MCC Huludao Nonferrous Metals Group Co., Ltd. Participated in the drafting of this section. Beijing Mining Research Institute, Hunan Nonferrous Metals Group Co., Ltd. Shuikoushan, Zijin Nonferrous Bayannaoer Metal Co., Ltd., Hunan Nonferrous Metal Research Institute, Henan Yuguang Gold & Lead Co., Ltd. The main drafters of this section. Lixing Feng, Yu Zhiming, Xi Hongjie, Xu Xiaoyan, seeking Tao Jiang, Luo Yongfeng, LIU Ya-ling, towards Lu, Guoxin Ling, Yang Qing laugh, Pangwen Lin, Su Xuemei, Zhang Yamin. This part of the standard replaces the previous editions are. --- GB/T 8151.2-1987, GB/T 8151.2-2000. Methods for chemical analysis of zinc concentrates Part 2. determination of sulfur content Combustion and titration

1 Scope

This section GB/T 8151 provides for determination of sulfur content of zinc concentrates. This section applies to the determination of zinc in concentrate sulfur content measurement range. 20.00% - 40.00%.

2 Method summary

High temperature combustion of oxygen in the sample stream, so that oxidation of sulfides, sulfates decompose to sulfur dioxide, to hydrogen peroxide solution and an oxygen absorbing Into sulfuric acid and methyl red and methylene blue mixed indicator, titrated with sodium hydroxide standard solution titration solution from purple to green As the end point. Technical conditions prescribed amount of coexisting elements do not interfere with the determination of sulfur.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical reagent and distilled or deionized water or equivalent purity. 3.1 sodium hydroxide. 3.2 discoloration silica gel. 3.3 copper oxide, powder. 3.4 Qianfen (wPb≥99.99%). 3.5 sulfate (ρ1.84g/mL). 3.6 sulfuric acid (11), pure class distinctions. 3.7 nitric acid (13), pure class distinctions. 3.8 potassium permanganate - sodium hydroxide solution. Weigh 3.0g of potassium permanganate dissolved in 100mL of water, 10g of sodium hydroxide (3.1), dissolved Solution, wash load cylinders. 3.9 absorbed hydrogen peroxide solution. 1000mL 50mL solution containing hydrogen peroxide [30% (mass fraction)], add 1mL mixed indicator (3.12), standard titration with sodium hydroxide solution (3.11) and sulfuric acid (119) was just green solution was adjusted (limited to use within 1 week). Lead sulfate benchmark 3.10 reagents. Weigh 20g of lead oxide (3.4) in the 500mL beaker, add 30mL of nitric acid (3.7) was dissolved, to be reacted After completion of the suspended matter was removed by filtration, was added 20mL sulfuric acid (3.6), after 2h by sedimentation speed quantitative filter paper, washed with distilled water until neutral, Drying in an oven, into a porcelain crucible, burning in a muffle furnace 780 ℃ 1h, remove the coolish desiccator. After the room out into RESEARCH A mortar, add muffle furnace 780 ℃ 1h after burning out, into the dryer as a standard substance. 3.11 sodium hydroxide standard titration solution (approximately 0.1mol/L). 3.11.1 preparation. 7mL sodium hydroxide solution (400g/L) placed in a 1L plastic bucket with boiled and cooled distilled water to 1L, and mix. 3.11.2 Calibration. Accurately weigh 0.4000g lead sulphate reference reagent (3.10) in the porcelain boat, covering 0.5g copper oxide (3.3), according to analysis Simultaneous calibration record volume consumption of sodium hydroxide. According to equation (1) to calculate the concentration of sodium hydroxide standard titration solution. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 8151.2-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 8151.2-2012_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 8151.2-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 8151.2-2012_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 8151.2-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8151.2-2012 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.