YS/T 281.8-2011 English PDFUS$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. YS/T 281.8-2011: Methods for chemical analysis of cobalt. Part 8: Determination of cadmium content. Flame atomic absorption spectrometry Status: Valid YS/T 281.8: Historical versions
Basic dataStandard ID: YS/T 281.8-2011 (YS/T281.8-2011)Description (Translated English): Methods for chemical analysis of cobalt. Part 8: Determination of cadmium 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77.120.70 Word Count Estimation: 6,638 Date of Issue: 2011-12-20 Date of Implementation: 2012-07-01 Older Standard (superseded by this standard): YS/T 281.8-1994 Regulation (derived from): ?MIIT Announcement 2011 No.43 Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the method for the determination of cadmium, cobalt content. This section applies to the determination of cadmium, cobalt content. Measuring range: 0. 00010% to 0. 0030%. YS/T 281.8-2011: Methods for chemical analysis of cobalt. Part 8: Determination of cadmium 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.Part 8. Determination of cadmium content.Flame atomic absorption spectrometry ICS 77.120.70 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 281.8-1994 Cobalt chemical analysis method Part 8. determination of cadmium content Flame atomic absorption spectrometry Part 8. Determination ofcadmiumcontent- 2011-12-20 release 2012-07-01 Implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China ForewordYS/T 281 "cobalt chemical analysis method" is divided into the following 20 parts. Part 1. Determination of iron content - Sulfosalicylic acid spectrophotometric method Part 2. Determination of aluminum content - Chromazu S spectrophotometric method Part 3. Determination of silicon content - Molybdenum blue spectrophotometric method Part 4. Determination of arsenic content - Molybdenum blue spectrophotometric method - Part 5. Determination of phosphorus content - Molybdenum blue spectrophotometric method Part 6. Determination of magnesium content - Flame atomic absorption spectrometric method - Part 7. Determination of zinc content - Flame atomic absorption spectrometric method Part 8. Determination of cadmium content - Flame atomic absorption spectrometric method Part 9. Determination of lead content - Flame atomic absorption spectrometric method Part 10. Determination of nickel content - Flame atomic absorption spectrometric method - Part 11. Determination of copper and manganese - Flame atomic absorption spectrometric method - Part 12. Determination of arsenic, antimony, bismuth, tin and lead - Electrothermal atomic absorption spectrometry - Part 13. Determination of sulfur content - High frequency induction furnace combustion infrared absorption method - Part 14. Determination of carbon content - High frequency induction furnace combustion infrared absorption method - Part 15. Determination of arsenic, antimony and bismuth - Hydride generation - atomic fluorescence spectrometry - Part 16. Determination of the amount of arsenic, cadmium, copper, zinc, lead, bismuth, tin, antimony, silicon, manganese, iron, nickel, aluminum and magnesium. Spectrum method - Part 17. Determination of aluminum, manganese, nickel, copper, zinc, cadmium, tin, antimony, lead and bismuth inductively coupled plasma mass spectrometry - Part 18. Determination of sodium content - Flame atomic absorption spectrometric method - Part 19. Determination of calcium, magnesium, manganese, iron, cadmium and zinc - Inductively coupled plasma emission spectrometric method - Part 20. Determination of the amount of oxygen - Infrared absorption method This section is part 8 of YS/T 281. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces YS/T 281.8-1994 "cobalt chemical analysis method flame atomic absorption spectrometric determination of cadmium". versus YS/T 281.8-1994 compared to this part of the main changes are as follows. The lower limit of analysis is from 0.0002% to 0.00010% --- The text format has been modified to supplement the quality assurance and control terms, increasing the repeatability and reproducibility limits; - Added the requirements for the test report. This part of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243) proposed and centralized. This standard is responsible for drafting units. Jinchuan Group Co., Ltd., Beijing Mining and Metallurgy Research Institute. This part is responsible for drafting units. Beijing Mining and Metallurgy Research Institute. This part participates in the drafting unit. Jinchuan Group Co., Ltd., Shenzhen Green US High-tech Co., Ltd., China Metallurgical Huludao colored Metal Group Limited. The main drafters of this part. Feng Xianjin, Jiang Qiutao, Gao Yingjian, Ruan Guixi, Lu Qingcheng, Zhang Jihong, Wang Li, Yan Li, Liu Limin, Xi Hongjie. This part of the previous version of the standard to replace the release of the situation. YS/T 281.8-1994. Cobalt chemical analysis method Part 8. determination of cadmium content Flame atomic absorption spectrometry WARNING. Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security issues. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.1 ScopeThis part of YS/T 281 specifies the determination of cadmium in cobalt. This part is applicable to the determination of cadmium in cobalt. Measurement range. 0.00010% ~ 0.0030%.2 method summaryThe sample was decomposed with nitric acid, and in an dilute nitric acid medium, an air-acetylene flame was used at a wavelength of 228.8 nm at an atomic absorption spectrometer. Cadmium absorbance. The standard solution should contain the same concentration of cobalt matrix as the sample solution.3 reagentIf no special instructions, the reagents used for the analysis of pure reagents, preparation and analysis of water are secondary distilled water or considerable purity of the experiment Room water. 3.1 metal cobalt (wCo ≥ 99.98%, wCd < 0.00005%). 3.2 nitric acid (1 1). 3.3 Nitric acid (1 19). 3.4 Cadmium standard storage solution. Weigh 1.0000g metal cadmium (wCd > 99.99%) in 250mL beaker, add 30mL nitric acid (3.2) Cover the dish, heating and dissolving completely and evaporated to about 5mL, remove, wash the dish and cup wall with water, cold to room temperature. Move into 1000mL Capacity of the bottle, the water volume, mixing. 1 mL of this solution contains 1 mg of cadmium. 3.5 Cadmium standard solution A. Remove 10.00mL cadmium standard storage solution (3.4) in 100mL volumetric flask, the water volume, mix. This solution Liquid 1mL containing 100μg cadmium. 3.6 Cadmium standard solution B. Remove 10.00mL cadmium standard solution A (3.5) in 100mL, volumetric flask. Water volume, mix. This solution Liquid 1mL containing 10μg of cadmium.4 instrumentsAtomic Absorption Spectrometer, Cadmium Hollow Cathode Lamp. In the best working conditions of the instrument, who can achieve the following indicators can be used. --- Minimum sensitivity. The concentration of cadmium should not be greater than 0.034 μg/mL in a solution consistent with the matrix of the test sample solution. Precision. the maximum concentration of the standard solution measured 10 times the absorbance, the standard deviation should not exceed 1.0% of the average absorbance; The standard absorbance should be measured with a minimum concentration of standard solution (not a "zero" standard solution) with a standard deviation of no more than the highest concentration ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 281.8-2011_English be delivered?Answer: Upon your order, we will start to translate YS/T 281.8-2011_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 281.8-2011_English with my colleagues?Answer: Yes. The purchased PDF of YS/T 281.8-2011_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 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 YS/T 281.8-2011?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 281.8-2011 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. |
