HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

YS/T 349.3-2010 English PDF

US$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 349.3-2010: Methods for chemical analysis of cobalt sulfide concentrate. Part 3: Determination of manganese content. Flame atomic absorption spectrometry
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 349.3-2010English159 Add to Cart 3 days [Need to translate] Methods for chemical analysis of cobalt sulfide concentrate. Part 3: Determination of manganese content. Flame atomic absorption spectrometry Valid YS/T 349.3-2010

PDF similar to YS/T 349.3-2010


Standard similar to YS/T 349.3-2010

YS/T 252.6   GB/T 3884.2   GB/T 3884.1   YS/T 349.2   YS/T 349.4   YS/T 349.1   

Basic data

Standard ID YS/T 349.3-2010 (YS/T349.3-2010)
Description (Translated English) Methods for chemical analysis of cobalt sulfide concentrate. Part 3: Determination of manganese content. Flame atomic absorption spectrometry
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.70
Word Count Estimation 6,663
Date of Issue 2010-11-22
Date of Implementation 2011-03-01
Older Standard (superseded by this standard) YS/T 349-1994
Regulation (derived from) MIIT (2010) No. 126
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the cobalt sulfide concentrate Determination of manganese content. This standard applies to cobalt sulfide concentrates Determination of manganese content. Measuring range: 0. 1% to 1%.

YS/T 349.3-2010: Methods for chemical analysis of cobalt sulfide concentrate. Part 3: Determination of manganese content. Flame atomic absorption 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.
Methods for chemical analysis of cobalt sulfide concentrate.Part 3. Determination of manganese content.Flame atomic absorption spectrometry ICS 77.120.70 H13 People's Republic of China Nonferrous Metals Industry Standard Partial replacement of YS/T 349-1994 Cobalt sulfide concentrates - Methods Part 3. Determination of the amount of manganese Flame Atomic Absorption Spectrometry Part 3. Determinationofmanganesecontent- Issued on. 2010-11-22 2011-03-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 349 "cobalt sulfide concentrates - the method" is divided into four parts. --- Part 1. Determination of cobalt content potentiometric titration; --- Part 2. Determination of copper content - Flame atomic absorption spectrometry; --- Part 3. Determination of manganese content by flame atomic absorption spectrometry; --- Part 4. Determination of the amount of silica potassium fluosilicate volumetric method. This is Part 3. The partial replacement of YS/T 349-1994 Determination of manganese content part of "matte cobalt concentrate chemical analysis methods", and YS/T 349-1994 phase Ratio, this section there are major changes as follows. --- Analysis by a colorimetric potassium periodate to flame atomic absorption spectrometry; --- Measurement range is defined as. 0.1% to 1%; --- Supplementary terms of quality assurance and control, increasing the precision of the terms. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting Jinchuan Group Limited. This in part by the Beijing General Research Institute of Mining and Metallurgy, Beijing Nonferrous Metal Research Institute, CRIMM participate in the drafting. The main drafters of this section. Zhang Zhi hair, dry Yong, Yang Yuanyuan, Lv Qingcheng, Huangai Rong, Lin Hsiu-ying, Nguyen Cinnamon, ginger seeking Tao, Liu, Xiahuai Bin, Yang Lin. This part of the standard replaces the previous editions are. --- YS/T 394.3-1994; --- YB825-1975. Cobalt sulfide concentrates - Methods Part 3. Determination of the amount of manganese Flame Atomic Absorption Spectrometry

1 Scope

This section YS/T 349 specifies the method for determination of cobalt sulfide concentrate manganese content. This section applies to the determination of cobalt sulfide concentrate manganese content. Measurement range. 0.1% to 1%.

2 Method summary

Samples with hydrochloric acid, nitric acid, perchloric acid decomposition, 2% hydrochloric acid medium with an air - acetylene flame atomic absorption spectrometer wavelength 279.5nm at measuring the absorbance, the standard curve method to calculate the amount of manganese. Iron content < 5% does not interfere with the determination of manganese.

3 Reagents

Unless otherwise specified, the reagents were analytical reagent, which is a distilled water or equivalent purity water. 3.1 ammonium hydrogen fluoride. 3.2 hydrochloride (ρ1.19g/mL). Nitrate 3.3 (ρ1.42g/mL). 3.4 perchloric acid (ρ1.67g/mL). 3.5 Hydrofluoric acid (ρ1.15g/mL). 3.6 manganese standard stock solution. Weigh 1.0000g metal manganese (Mn mass fraction ≥99.95%) placed in 500mL beaker, add 20mL of nitric acid (11) was completely dissolved, evaporated to near dryness, cooled, hydrochloric acid was added 10mL, add a little water, dissolved salts boiled, cooled and transferred to 1000mL volumetric flask, constant volume of water. 1mL solution containing 1mg manganese. 3.7 manganese standard solution. Pipette 15.00mL manganese standard stock solution (3.6) in 500mL volumetric flask, was added 5mL hydrochloric acid (3.2) to Water volume. This solution 1mL containing 30μg manganese.

4 Instrument

Atomic absorption spectrometer, with a manganese hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used; --- Sensitivity. basically the same test solution and measurement solution, characteristic concentration of manganese should not exceed 0.05μg/mL; --- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed the average absorbance of 1.0%; The lowest concentration of standard solution used (instead of "zero" standard solution) absorbance measured 10 times, and the standard deviation should not exceed the maximum concentration 0.5% of the mean absorbance of the standard solution; --- Linear curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment of the segment Ratio of not less than 0.80. Atomic absorption spectrometer operating conditions refer to Table 1.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 349.3-2010_English be delivered?

Answer: Upon your order, we will start to translate YS/T 349.3-2010_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 349.3-2010_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 349.3-2010_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 [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.