|
US$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 461.5-2013: Methods for chemical analysis of lead and zinc bulk concentrates. Part 5: The determination of silicon dioxide content. Molybdenum blue spectrophotometric method
Status: Valid YS/T 461.5: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 461.5-2013 | English | 159 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of lead and zinc bulk concentrates. Part 5: The determination of silicon dioxide content. Molybdenum blue spectrophotometric method
| Valid |
YS/T 461.5-2013
|
| YS/T 461.5-2003 | English | 239 |
Add to Cart
|
2 days [Need to translate]
|
The methods for chemical analysis of lead and zinc bulk concentrates-The determination of silicon dioxide content-The molybdenum blue spectrophotometric method
| Obsolete |
YS/T 461.5-2003
|
PDF similar to YS/T 461.5-2013
Basic data | Standard ID | YS/T 461.5-2013 (YS/T461.5-2013) | | Description (Translated English) | Methods for chemical analysis of lead and zinc bulk concentrates. Part 5: The determination of silicon dioxide content. Molybdenum blue spectrophotometric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 6,674 | | Older Standard (superseded by this standard) | YS/T 461.5-2003 | | Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 52, 2013; industry standard for filing Notice No. 1 of 2014 (No. 169 overall) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the method for the determination of lead and zinc concentrates hybrid silica content. This standard applies to the determination of mixing silica content of lead and zinc concentrates. Measuring range: 1. 00% to 10. 00%. | YS/T 461.5-2013: Methods for chemical analysis of lead and zinc bulk concentrates. Part 5: The determination of silicon dioxide content. Molybdenum blue spectrophotometric 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.
Methods for chemical analysis of lead and zinc bulk concentrates Part 5. The determination of silicon dioxide content Molybdenum blue spectrophotometric method
ICS 77.120.60
H13
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 461.5-2003
Lead and Zinc concentrates - Methods
Part 5. Determination of the amount of silica
Molybdenum blue spectrophotometric method
Part 5. Thedeterminationofsilicondioxidecontent-
Issued on. 2013-10-17
2014-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 461 "Lead and Zinc concentrates - Methods" is divided into 11 parts.
--- Part 1. Determination of the amount of lead and zinc content Na2EDTA precipitation titration;
--- Part 2. Determination of iron content Na2EDTA titration;
--- Part 3. Determination of sulfur content of combustion - neutralization titration method;
--- Part 4. Determination of arsenic content of iodine titration;
--- Part 5. Determination of silicon dioxide content - Molybdenum blue spectrophotometric method;
--- Part 6. Determination of the amount of mercury atomic fluorescence spectrometry;
--- Part 7. Determination of cadmium content by flame atomic absorption spectrometry;
--- Part 8. Determination of copper content - Flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of silver by flame atomic absorption spectrometry;
--- Part 10. the amount of gold and silver contents - fire assay;
--- Part 11. arsenic, bismuth, cadmium, cobalt, copper, nickel, antimony content - Inductively Coupled Plasma - Atomic Emission Spectrometry.
This section YS/T Part 5 461.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of YS/T 461.5-2003 "Determination of Lead and Zinc concentrates - Methods for chemical analysis of silicon dioxide content - Molybdenum blue spectrophotometric
law". Compared with YS/T 461.5-2003, the main changes are as follows.
--- Text format has been modified;
--- Added "reproducibility" clause, delete the words "to allow poor" clause;
--- Added "the test report" requirement.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
YS/T 461 is responsible for drafting. Shenzhen Lingnan Nonferrous Metals Co., Baiyin Nonferrous Metals Corporation, Beijing
Institute of Mining and Metallurgy.
This section is responsible for drafting. Shenzhen Lingnan Nonferrous Metals Co. Fankou.
Participated in the drafting of this section. Shenzhen Lingnan Nonferrous Metals Co., Ltd. Shaoguan smelter Baiyin Nonferrous Metals Group Limited shares
The company, Western Mining Corporation and Inspection Center.
The main drafters of this section. Lee Ping, Luo Fu Xing Yuan Lili, Lin Ye, Lv Yanling, Wang, Yang Zhanju, Wang, Lung Ying-Lan.
This part of the standard replaces the previous editions are.
--- YS/T 461.5-2003.
Lead and Zinc concentrates - Methods
Part 5. Determination of the amount of silica
Molybdenum blue spectrophotometric method
1 Scope
This section YS/T 461 specifies the method for determination of mixing silica content of lead and zinc concentrate.
This section applies to the determination of lead and zinc concentrate mixing silica content. Measuring range. 1.00% to 10.00%.
2 Method summary
Sample with sodium hydroxide melting, hot water leaching. In sulfuric acid, ammonium molybdate generation silicon and silicon molybdenum heteropoly acid, oxalic acid masking phosphorus, with anti
Ascorbic acid reducing silicon molybdenum heteropoly acid into silicon molybdenum blue. Measured in a spectrophotometer at a wavelength of 650nm absorbance, according to the standard curve method to calculate two
The content of silicon oxide.
Interfere with the determination when arsenic is greater than 2%.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
3.1 sodium hydroxide, pure class distinctions.
Aqueous ammonia 3.2 (ρ = 0.90g/mL).
3.3 sulfate (ρ = 1.84g/mL).
3.4 sulfate (11).
3.5 sulfate (19).
3.6 Aqueous ammonia (11).
3.7 ammonium molybdate solution (80g/L), filtered to use.
3.8 oxalic acid solution (50g/L).
3.9 ascorbic acid solution (20g/L), the time is now equipped with.
3.10 silica standard stock solution. Weigh 0.5000g silica (pure class distinctions, previously calcined at 950 ℃ 30min, placed in dry
It is cooled to room temperature) in the mixed flux containing 5g (duplicate copy of anhydrous sodium carbonate and potassium carbonate mix) platinum crucible, mix, cover
2g mixed flux and placed 900 ℃ ~ 950 ℃ high temperature furnace melting 1h. Remove coolish external crucible washed with water, placed in a pre added
150mL 300mL Teflon beaker of hot water extraction, wash the crucible, cooled to room temperature, transferred to 500mL volumetric flask, dilute with water
Diluted to the mark, mix, stored in a plastic bottle. 1mL solution containing 1mg silica.
3.11 Silica Standard Solution. Pipette silica 50.00mL standard stock solution (3.10) in 500mL volumetric flask, dilute with water
To the mark, mix and store in a plastic bottle. This solution 1mL containing 100μg silica.
3.12 pairs nitrophenol indicator (1g/L).
4 Instrument
Spectrophotometer.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 461.5-2013_English be delivered?Answer: Upon your order, we will start to translate YS/T 461.5-2013_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 YS/T 461.5-2013_English with my colleagues?Answer: Yes. The purchased PDF of YS/T 461.5-2013_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+ countriesQuestion 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 [email protected]. 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 YS/T 461.5-2013?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 461.5-2013 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.
|