GB/T 45479-2025 English PDF

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GB/T 45479-2025: Manganese ores and concentrates - Determination of potassium oxide and sodium oxide content - Flame atomic emission spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45479-2025	279	Add to Cart	3 days	Manganese ores and concentrates - Determination of potassium oxide and sodium oxide content - Flame atomic emission spectrometric method	Valid

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Basic data

Standard ID: GB/T 45479-2025 (GB/T45479-2025)
Description (Translated English): Manganese ores and concentrates - Determination of potassium oxide and sodium oxide content - Flame atomic emission spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D32
Classification of International Standard: 73.060.20
Word Count Estimation: 14,157
Date of Issue: 2025-03-28
Date of Implementation: 7/1/2025
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45479-2025: Manganese ores and concentrates - Determination of potassium oxide and sodium oxide content - Flame atomic emission 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.
ICS 73.060.20 CCSD32 National Standard of the People's Republic of China Determination of potassium oxide and sodium oxide content in manganese ore and manganese concentrate Flame Atomic Emission Spectrometry Released on 2025-03-28 2025-07-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is modified to adopt ISO 4571.1981 "Manganese ores and concentrates - Determination of potassium and sodium contents - Flame atomic emission spectrometric method". Compared with ISO 4571.1981, this document has many structural adjustments. Appendix A lists the differences between this document and ISO 4571.1981. Comparison table of structural number changes. This document has many technical differences compared to ISO 4571.1981.The clauses involved in these differences have been marked in the outer margins. Appendix B provides a list of corresponding technical differences and their reasons. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Iron and Steel Association. This document is under the jurisdiction of the National Technical Committee for Standardization of Pig Iron and Ferroalloys (SAC/TC318). This document was drafted by. Qingdao Bozheng Inspection Technology Co., Ltd., Qingdao Customs Technology Center, Qingdao Yuancheng Chuangzhi Technology Co., Ltd., Qingdao Dehong Jinxin Technology Co., Ltd., China Certification & Inspection Group Hebei Co., Ltd., Zhanjiang Customs Technology Center, Qingdao University of Technology, Shenzhen Customs Industrial Products Inspection Technology Center, Nanning Customs Technology Center, Chongqing Customs Technology Center, Metallurgical Industry Information Standards Research Institute. The main drafters of this document are. Guan Song, Liu Shuhui, Che Lizhi, Ding Shibing, Wei Yujie, Huang Ping, Zhang Xiaoyan, Zhang Yuesheng, Wang Kaige, Li Lulin, Wang Gang, Tian Qiong, Yu Shuyuan, Tang Mengqi, Chen Hailin, Zhang Qingjian, Ma Li, Fan Yu, Wang Xu, Wang Shaona, Xue Yan, Wang Jing, and Lu Chunsheng. Determination of potassium oxide and sodium oxide content in manganese ore and manganese concentrate Flame Atomic Emission Spectrometry Warning---People who use this document should have practical experience in formal laboratory work. This document does not address all possible safety issues. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations.

1 Scope

This document describes a method for the determination of potassium oxide and sodium oxide in manganese ores and concentrates by flame atomic emission spectrometry. This document is applicable to the determination of potassium oxide and sodium oxide content in manganese ore and manganese concentrate. Determination range (mass fraction). potassium oxide 0.060%~4.80%, sodium oxide 0.025%~1.35%.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 2011 Sampling and sample preparation methods for bulk manganese ore GB/T 6379.2 Accuracy (trueness and precision) of measurement methods and results Part 2.Determination of repeatability of standard measurement methods Basic methods of sex and reproducibility GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 12806 Laboratory glassware single-line volumetric flasks GB/T 12808 Laboratory glassware single-line pipettes GB/T 14949.8 Determination of wet water content of manganese ore - Gravimetric method

3 Terms and definitions

There are no terms or definitions that require definition in this document.

4 Principle

Decompose the sample with hydrochloric acid, nitric acid, hydrofluoric acid and perchloric acid, heat the perchloric acid to make it emit white smoke to remove the hydrofluoric acid, and use hydrochloric acid to dissolve the dioxygen Manganese. Add cesium nitrate solution and dilute appropriately. Inhale the solution into an air-acetylene flame at wavelengths of 766.5nm and 589.0nm respectively. The emission intensities of potassium and sodium were measured and the contents of each element were calculated according to the calibration curve. Use single-color configuration to eliminate the interference of calcium, and use cesium nitrate solution to eliminate the mutual interference of alkali elements (sodium, lithium, etc.). ......

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