|
US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4324.4-2012: Methods for chemical analysis of tungsten -- Part 4: Determination of antimony content -- Hydrogenate atomic absorption spectrometry
Status: Valid GB/T 4324.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4324.4-2012 | English | 189 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of tungsten -- Part 4: Determination of antimony content -- Hydrogenate atomic absorption spectrometry
| Valid |
GB/T 4324.4-2012
|
| GB/T 4324.4-1984 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Methods for chemical analysis of tungsten--The malachite green photometric method for the determination of antimony content
| Obsolete |
GB/T 4324.4-1984
|
PDF similar to GB/T 4324.4-2012
Basic data | Standard ID | GB/T 4324.4-2012 (GB/T4324.4-2012) | | Description (Translated English) | Methods for chemical analysis of tungsten -- Part 4: Determination of antimony content -- Hydrogenate atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 8,823 | | Older Standard (superseded by this standard) | GB/T 4324.4-1984 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General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 tungsten powder, tungsten, tungsten trioxide, tungsten blue, purple, tungsten, tungsten carbide, tungsten acid, ammonium metatungstate paratungstate Determination of antimony content. This section applies to tungsten powder, tu | GB/T 4324.4-2012: Methods for chemical analysis of tungsten -- Part 4: Determination of antimony content -- Hydrogenate 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 tungsten Part 4. Determination of antimony content Hydrogenate atomic absorption spectrometry
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 4324.4-1984
Chemical analysis of tungsten
Part 4. Determination of antimony content
Hydride generation atomic absorption spectrometry
Part 4. Determinationofantimonycontent-
Issued on. 2012-12-31
2013-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 4324 "chemical analysis of tungsten" is divided into 28 parts.
--- Part 1. Determination of lead content - flame atomic absorption spectrometry;
--- Part 2. Determination of bismuth content hydride generation atomic absorption spectrometry;
--- Part 3. Determination of tin content hydride generation atomic absorption spectrometry;
--- Part 4. Determination of antimony content hydride generation atomic absorption spectrometry;
--- Part 5. Determination of arsenic content by hydride generation atomic absorption spectrometry;
--- Part 6. Determination of iron content of phenanthroline spectrophotometry;
--- Part 7. Determination of cobalt content by inductively coupled plasma atomic emission spectrometry;
--- Part 8. Determination of the amount of nickel by inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry Diacetyldioxime
Gravimetric method;
--- Part 9. Determination of cadmium content by inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry;
--- Part 10. Determination of copper content - Flame atomic absorption spectrometry;
--- Part 11. Determination of aluminum content by inductively coupled plasma atomic emission spectrometry;
--- Part 12. Determination of the amount of silicon tetrachloride - molybdenum blue spectrophotometric method;
--- Part 13. Inductively coupled plasma calcium atomic emission spectrometry;
--- Part 14. Chlorinated Volatile residue amount after Gravimetric method;
--- Part 15. Determination of magnesium content - Flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry;
--- Part 16. Determination of loss on ignition - Gravimetric method;
--- Part 17. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 18. Determination of potassium content by flame atomic absorption spectrometry;
--- Part 19. Determination of titanium content of two methane antipyrine spectrophotometry;
--- Part 20. vanadium content - Inductively coupled plasma atomic emission spectrometry;
--- Part 21. Determination of chromium content by inductively coupled plasma atomic emission spectrometry;
--- Part 22. manganese content - Inductively coupled plasma atomic emission spectrometry;
--- Part 23. Determination of sulfur content of combustion conductance method and frequency combustion infrared absorption method;
--- Part 24. Determination of phosphorus content - Molybdenum blue spectrophotometric method;
--- Part 25. Determination of oxygen pulse heating inert gas fusion - infrared absorption method;
--- Part 26. Determination of nitrogen pulse heating inert gas fusion - thermal conductivity method and Nessler reagent spectrophotometric method;
--- Part 27. Determination of carbon content in the high-frequency combustion infrared absorption method;
--- Part 28. Determination of molybdenum content - Thiocyanate spectrophotometric method.
This section GB/T 44324 Part of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4324.4-1984 "spectrophotometric determination of malachite green chemical analysis of tungsten antimony content", and GB/T 4324.4-
Compared to 1984, the main technical changes are as follows.
--- Malachite green spectrophotometric measurement methods changed from the original hydride generation atomic absorption spectrometry;
--- Scope added to tungsten blue, purple tungsten, tungsten carbide, ammonium paratungstate. Detection range from "0.00005% to 0.0050%" is replaced by
"0.00005% to 0.020%";
--- In order to ensure the application of different sample dissolution methods in the "sample" in the fine, the average particle size of the tungsten carbide coarse particles were defined;
--- The "measurement frequency" in the "three" to "two";
--- Tungsten powder, tungsten, tungsten oxide, tungstic acid, ammonium paratungstate were modified sample dissolution method, an increase of tungsten blue, purple tungsten, tungsten carbide, metatungstate
Ammonium dissolving method;
--- Increasing the foreword, precision and test reports, and a standard format editing.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Chenzhou Diamond Tungsten Products Co., Ltd., Ganzhou Nonferrous Metallurgy Research Institute, Hunan Nonferrous Metals Co. Shizhuyuan
Liability company.
The main drafters of this section. Du just, Tangxian Ying, Yu Xiaohui, Luo Kai Kwong Jing, Lin Qing, Zhong Daoguo, Wangzhou Lin, Chen Xiaohong.
This part of the standard replaces the previous editions are.
--- GB/T 4324.4-1984.
Chemical analysis of tungsten
Part 4. Determination of antimony content
Hydride generation atomic absorption spectrometry
1 Scope
GB/T 4324 provisions of this part of the tungsten powder, tungsten trioxide, tungsten, tungsten blue, purple tungsten, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate
Determination of antimony content.
This Part applies to tungsten powder, tungsten measure, tungsten trioxide, tungsten blue, purple tungsten, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate antimony content
set. Determination range of 0.00005% to 0.020%.
2 Method summary
Tungsten powder, tungsten, tungsten blue, fine particles of tungsten carbide and sodium hydroxide, hydrogen peroxide decomposition; tungsten trioxide, tungstic acid, ammonium paratungstate, metatungstate acid
With ammonium hydroxide decomposition; blue tungsten, tungsten carbide coarse particles after burning into tungsten trioxide decomposition with sodium hydroxide. Citric acid complex body of tungsten with
Ascorbic acid reducing pentavalent antimony to trivalent, at 6% hydrochloric acid medium conditions, with potassium iodide, thiourea impurity ions eliminate interference by flow injection
Shot - hydride generator and atomic absorption spectrometer used for the determination of antimony content.
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 Hydrogen peroxide (ρ = 1.10g/mL), pure class distinctions.
3.2 hydrochloric acid (ρ = 1.19g/mL), pure class distinctions.
3.3 hydrochloric acid (32), pure class distinctions.
3.4 citric acid solution (500g/L).
3.5 Sodium hydroxide solution (100g/L), pure class distinctions.
3.6 ascorbic acid solution (100g/L). The time is now equipped with.
3.7 KI - thiourea mixture. Weigh 250g of potassium iodide and 20g of thiourea dissolved in 1000mL water. Stored in a brown bottle.
3.8 solution of potassium borohydride (15g/L). Weigh 0.6g 3g potassium borohydride and sodium hydroxide dissolved in 200mL of water. The time is now equipped with.
3.9 tungsten matrix. should the sample composition is similar to the antimony content of not more than 0.00001%.
3.10 Antimony standard stock solution. Weigh 0.1000g spectroscopically pure antimony metal, placed in 250mL beaker, add 10mL ~ 20mL concentrated hydrochloric
Acid (3.2), heated to dissolve completely after cooling transferred to 1000mL volumetric flask with hydrochloric acid (13) was diluted to the mark. This solution
1mL containing 100μg antimony.
Antimony 3.11 Standard Solution A. accurate Pipette 5.00mL antimony standard solution (3.10) in 100mL flask, diluted with hydrochloric acid (19) to
Mark and shake. This solution 1mL containing 5μg antimony.
3.12 Antimony standard solution B. Pipette accurately 10.00mL antimony standard solution (3.11) in 100mL flask, diluted with hydrochloric acid (19)
To the mark. This solution 1mL containing 0.5μg antimony.
3.13 phenolphthalein solution (10g/L). Weigh 1g phenolphthalein dissolved in 100mL absolute ethanol.
3.14 HCl carrier (199).
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4324.4-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 4324.4-2012_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 4324.4-2012_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4324.4-2012_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+ 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 GB/T 4324.4-2012?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4324.4-2012 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.
|