GB/T 14949.2-2021 English PDFUS$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14949.2-2021: Manganese ores - Determination of nickel content - Flame atomic absorption spectrometric method Status: Valid GB/T 14949.2: Historical versions
Basic dataStandard ID: GB/T 14949.2-2021 (GB/T14949.2-2021)Description (Translated English): Manganese ores - Determination of nickel content - Flame atomic absorption spectrometric method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D32 Word Count Estimation: 8,893 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 14949.2-2021: Manganese ores - Determination of nickel content - Flame atomic absorption spectrometric 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. Manganese ores - Determination of nickel content - Flame atomic absorption spectrometric method ICS 73.060.20 CCSD32 National Standards of People's Republic of China Replace GB/T 14949.2-1994 Determination of nickel content in manganese ore Flame atomic absorption spectrometry Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is Part 2 of GB/T 14949.GB/T 14949 has released the following parts. ---Manganese ore chemical analysis method determination of chromium content; ---Determination of nickel content of manganese ore by flame atomic absorption spectrometry; ---Manganese ore chemical analysis method determination of barium oxide content; ---Manganese ore chemical analysis method determination of vanadium content; ---Determination of titanium content in manganese ore Diantipyrylmethane spectrophotometric method; ---Manganese ore chemical analysis method determination of copper, lead and zinc content; ---Manganese ore chemical analysis method sodium and potassium determination; ---Gravimetric method for the determination of wet storage water of manganese ore; ---Manganese ore chemical analysis method determination of sulfur content; ---Manganese ore chemical analysis method determination of cobalt content; ---Determination of carbon content of manganese ore by gravimetric method and infrared absorption method; ---Gravimetric method for determination of combined water content of manganese ore. This document replaces GB/T 14949.2-1994 "Manganese Ore Chemical Analysis Method for the Determination of Nickel Content", and GB/T 14949.2-1994 In comparison, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The measurement range is changed (see Chapter 1, Chapter 1 of the.1994 edition), and the technical content related to the measurement range in the article has been adjusted. Whole (see Table 1, Table 2,.1994 Edition of Table 1, Table 2); b) The density of hydrofluoric acid has been changed (see 5.9, 3.9 in the.1994 edition); c) An oven has been added (see 6.2); d) A high-temperature furnace has been added (see 6.3); e) The characteristic concentration and detection limit of atomic absorption spectrometer have been added (see 6.4); f) Modified the contents of the sample drying treatment (see Chapter 7, Chapter 5 of the.1994 edition); g) Deleted the measurement of wet storage (see 6.1 of the.1994 edition); h) The requirements for the number of determinations have been added (see 8.2); i) The conversion factor K in the calculation formula is deleted (see Chapter 7 of the.1994 edition); j) The allowable error in the laboratory has been added (see Chapter 10); k) The content of the test report has been added (see Chapter 11); l) Added Appendix A (see Appendix A). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Iron and Steel Association. This document is under the jurisdiction of the National Pig Iron and Ferroalloy Standardization Technical Committee (SAC/TC318). Drafting organizations of this document. Shandong Institute of Metallurgical Sciences Co., Ltd., Ordos City Xijin Mining and Metallurgy Co., Ltd., Qingdao Bozheng Inspection Technology Co., Ltd., Hebei Jinxi International Trade Co., Ltd., Ji Ferroalloy Co., Ltd., Metallurgical Industry Information Standards Research Institute. The main drafters of this document. Ni Shousheng, Zhang Li, Wang Xiangyang, Liu Wei, Yang Fan, Liu Peng, Meng Lili, Sun Yongfen, Huang Cheng, Li Jing, Ma Ning, Li Zhidong, Cui Yuwen, Ye Xiaoshuang, Liu Bing, Fan Yu. This document was first published in.1994, and this is the first revision.IntroductionAs there are many elements involved in the detection process of manganese ore, the applicable scope and applicable methods of the elements are different. to ensure that Manganese ore testing standards are convenient and accurate. We have established a national support for manganese ore testing based on the analysis methods for different elements of manganese ore. Home standard system. The GB/T 14949 series of analysis methods for manganese ore is the basic standard for manganese ore testing in my country, and it is planned to consist of twelve parts. ---GB/T 14949.1 Chemical analysis method for manganese ore Determination of chromium content. The purpose is to measure the chromium content in manganese ore, using Diphenylcarbazide photometric method and silver persulfate titration method. ---GB/T 14949.2 Determination of nickel content in manganese ores by flame atomic absorption spectrometry. The purpose is to measure the manganese ore Nickel content, using flame atomic absorption spectrometry. ---GB/T 14949.3 Methods for chemical analysis of manganese ore. Determination of barium oxide content. The purpose is to measure barium oxide in manganese ore The content is based on the barium sulfate gravimetric method. ---GB/T 14949.4 Method for chemical analysis of manganese ore. Determination of vanadium content. The purpose is to measure the vanadium content in manganese ore, using Phosphotungstovanadic acid photometric method. ---GB/T 14949.5 Determination of titanium content in manganese ore Diantipyrylmethane spectrophotometric method. The purpose is to measure manganese ore The titanium content in the stone was determined by the diantipyrylmethane spectrophotometric method. ---GB/T 14949.6 Methods for chemical analysis of manganese ore Determination of copper, lead and zinc content. The purpose is to measure copper in manganese ore, The content of lead and zinc is determined by flame atomic absorption spectrometry. ---GB/T 14949.7 Methods for chemical analysis of manganese ore Determination of sodium and potassium content. The purpose is to measure sodium and potassium in manganese ore Content, using flame atomic absorption spectrometry. ---GB/T 14949.8 Gravimetric method for the determination of wet storage water in manganese ore. The purpose is to measure the amount of sodium wet storage water in manganese ore, Use the weight method. ---GB/T 14949.9 Manganese ore chemical analysis method determination of sulfur content. The purpose is to measure the sulfur content in manganese ore, using Barium sulfate gravimetric method and combustion iodine titration method. ---GB/T 14949.10 Method for chemical analysis of manganese ore. Determination of cobalt content. The purpose is to measure the cobalt content in manganese ore and mine Use nitroso R salt photometric method. ---GB/T 14949.11 Determination of carbon content of manganese ore by gravimetric method and infrared absorption method. The purpose is to measure the manganese ore The carbon content is based on the gravimetric method and infrared absorption method. ---GB/T 14949.12 The gravimetric method for the determination of the combined water content of manganese ore. The purpose is to measure the combined water content of manganese ore The amount, using the weight method. Determination of nickel content in manganese ore Flame atomic absorption spectrometry Warning---The personnel using this document should have practical experience in formal laboratory work. This document does not indicate all possible safety issues question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.1 ScopeThis document specifies the flame atomic absorption method for the determination of nickel content in manganese ore. This document is applicable to the determination of nickel content in manganese ore. Measuring range (mass fraction). 0.005%~0.200%.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 2011 Bulk manganese ore sampling and sample preparation method GB/T 6682 Analytical laboratory water specifications and test methods GB/T 7728 General Rules of Flame Atomic Absorption Spectrometry for Chemical Analysis of Metallurgical Products3 Terms and definitionsThere are no terms and definitions that need to be defined in this document.4 PrincipleThe sample is decomposed with hydrochloric acid and nitric acid. Filter the insoluble residue and keep the filtrate as the main liquid. Burn the residue and filter paper together, use hydrofluoric acid and sulfur Acid treatment. It is melted with sodium carbonate, the melt is dissolved in the hydrochloric acid solution, and the resulting solution is combined with the main liquid. Spray the sample solution into an air-acetylene flame, use a nickel hollow cathode lamp as the light source, and measure at the wavelength of 232.0nm at the atomic absorption spectrometer The amount of absorbance.5 ReagentsUnless otherwise specified, only use analytical reagents. 5.1 Water, GB/T 6682, Class II. 5.2 Anhydrous sodium carbonate, solid. 5.3 Hydrochloric acid, ρ=1.19g/mL. 5.4 Hydrochloric acid (1 1). 5.5 Hydrochloric acid (1 4). 5.6 Hydrochloric acid (1 50). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14949.2-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 14949.2-2021_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 14949.2-2021_English with my colleagues?Answer: Yes. 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