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YS/T 281.9-2011 English PDF

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YS/T 281.9-2011: Methods for chemical analysis of cobalt. Part 9: Determination of lead content. Flame atomic absorption spectrometry
Status: Valid

YS/T 281.9: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 281.9-2011	English	159	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of cobalt. Part 9: Determination of lead content. Flame atomic absorption spectrometry	Valid	YS/T 281.9-2011
YS/T 281.9-1994	English	199	Add to Cart	2 days [Need to translate]	Cobalt - Determination of lead content - Flame atomic absorption spectrophotometric method	Obsolete	YS/T 281.9-1994

PDF similar to YS/T 281.9-2011

Standard similar to YS/T 281.9-2011

YS/T 252.6 GB/T 3884.2 GB/T 3884.1 YS/T 281.11 YS/T 281.1 YS/T 281.10

Basic data

Standard ID	YS/T 281.9-2011 (YS/T281.9-2011)
Description (Translated English)	Methods for chemical analysis of cobalt. Part 9: Determination of lead 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	6,624
Date of Issue	2011-12-20
Date of Implementation	2012-07-01
Older Standard (superseded by this standard)	YS/T 281.9-1994
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 lead content of cobalt. This section applies to the determination of cobalt in lead content. Measurement range: 0. 0015% to 0. 0070%.

YS/T 281.9-2011: Methods for chemical analysis of cobalt. Part 9: Determination of lead 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 9. Determination of lead content.Flame atomic absorption spectrometry ICS 77.120.70 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 281.9-1994 Cobalt chemical analysis method Part 9. determination of lead content Flame atomic absorption spectrometry Part 9. Determination ofleadcontent- 2011-12-20 release 2012-07-01 Implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

YS/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 9 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 281.9-1994 "cobalt chemical analysis method flame atomic absorption spectrometric determination of lead content". versus YS/T 281.9-1994 compared to this part of the main changes are as follows. --- 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. Shenzhen Greentime High Technology Co., Ltd., Jinchuan Group Co., Ltd. The main drafters of this part. Feng Xianjin, Jiang Qiutao, Gao Yingjian, Liu Cong, Tan Cuili, Lu Qingcheng, Zhang Jihong. This part of the previous version of the standard to replace the release of the situation. YS/T 281.9-1994. Cobalt chemical analysis method Part 9. determination of lead 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 Scope

This part of YS/T 281 specifies the determination of lead in cobalt. This part applies to the determination of lead in cobalt. Determination range. 0.0015% ~ 0.0070%.

2 method summary

The sample was decomposed with nitric acid, and in a dilute nitric acid medium, an air-acetylene flame was used at a wavelength of 217.0 nm at the atomic absorption spectrometer. Lead absorbance. The standard solution should contain the same concentration of cobalt matrix as the sample solution.

3 reagent

If 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%, wPb < 0.00005%). 3.2 nitric acid (1 1). 3.3 Nitric acid (1 19). 3.4 lead standard storage solution. weighed 1.0000g lead (wPb > 99.99%) in 250mL beaker, add 30mL nitric acid (3.2) cover The plates were heated and dissolved completely, and the micronatant was driven by nitrogen, and the plates and cup walls were washed with water and allowed to cool to room temperature. Into the 1000mL capacity Bottle, the water volume, mix. This solution 1mL containing 1mg of lead. 3.5 Lead Standard Solution A. Remove 10.00mL Lead Standard Storage Solution (3.4) In a 100 mL volumetric flask, dilute with nitric acid (3.3) to Scale, mix. This solution 1mL containing 100μg of lead. 3.6 Lead Standard Solution B. Remove 20.00mL Lead Standard Solution A (3.5) in 100mL, volumetric flask. Diluted with dilute nitric acid (3.3) Scale, mix. This solution contains 1 g of 20 μg of lead.

4 instruments

Atomic Absorption Spectrometer with Lead 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 lead should be no more than 0.47 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

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