GB/T 5195.7-2016 English PDF

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GB/T 5195.7-2016: Fluorspar -- Determination of zinc content -- Flame atomic absorption spectrophotometric method
Status: Valid

GB/T 5195.7: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5195.7-2016	199	Add to Cart	3 days	Fluorspar -- Determination of zinc content -- Flame atomic absorption spectrophotometric method	Valid
GB/T 5195.7-1985	199	Add to Cart	2 days	Methods for chemical analysis of fluor-spar--The molybdenum blue-rhodamine B photometric method for the determination of phosphorus content	Obsolete

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GB/T 5195.1   GB/T 5195.12   GB/T 3286.8   GB/T 5195.11   GB/T 5195.14   GB/T 5195.15   

Basic data

Standard ID: GB/T 5195.7-2016 (GB/T5195.7-2016)
Description (Translated English): Fluorspar -- Determination of zinc content -- Flame atomic absorption spectrophotometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D52
Classification of International Standard: 73.080
Word Count Estimation: 10,171
Date of Issue: 2016-12-13
Date of Implementation: 2017-09-01
Regulation (derived from): National Standard Notice No.60 of 2016
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

GB/T 5195.7-2016: Fluorspar -- Determination of zinc content -- Flame atomic absorption spectrophotometric 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.
Fluorspar - Determination of zinc content - Flame atomic absorption spectrophotometric method ICS 73.080 D52 National Standards of People's Republic of China Determination of zinc content in fluorite Atomic Absorption Spectrometry 2016-12-13 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 5195 is divided into 12 parts. - Part 1. Determination of fluorite content of fluorite; - Part 2. Determination of fluorite carbonate content; - Part 3. Determination of mass loss of fluorite at 105 ° C - Weight method; - Part 4. Determination of fluorite sulfide content - Iodometric method; - Part 5. Determination of total sulfur content of fluorite - Binary iodine method; - Part 6. Determination of fluorite content; - Part 7. Determination of zinc content in fluorite - Atomic absorption spectrometry; - Part 8. Determination of fluorite silica content; - Part 9. Determination of fluorite burning reduction - Weight method; - Part 10. Determination of iron content of fluorite - o - phenanthroline spectrophotometric method; - Part 11. Determination of manganese content in fluorite - Periodate spectrophotometric method; Part 12. Determination of arsenic content of fluorite - Atomic fluorescence spectrometry. This part is part 7 of GB/T 5195. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is made by China Iron and Steel Industry Association. This part is headed by the National Steel Standardization Technical Committee (SAC/TC183). This part of the drafting unit. Ningbo Entry-Exit Inspection and Quarantine Inspection and Quarantine Technology Center, Metallurgical Industry Information Standards Institute. The main drafters of this part. Liu Zaimei, Zhu Xiaoyan, Yang Dongbiao, Cao Guozhou, Xiao Daoqing, Lin Li, Chen Shaohong, Liu Jiang, Lu Chunsheng. Determination of zinc content in fluorite Atomic Absorption Spectrometry WARNING - Personnel using this section should have practical experience in formal laboratory work. This section does not indicate all possible security questions question. 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 GB/T 5195 specifies the determination of zinc content in fluorite by atomic absorption spectrometry. This part is applicable to the determination of zinc content in fluorite, the determination range (mass fraction). 0.020% ~ 1.0%.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) - Part 1. General and definitions GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods The basic method of sex and reproducibility GB/T 6682 Analytical laboratory water specifications and test methods Metallic products - Chemical analysis - Flame atomic absorption spectrometric methods Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170 GB/T 12806 laboratory glass instrument single standard line capacity bottle GB/T 12807 Laboratory glass instruments - Index pipettes GB/T 12808 Laboratory glass instruments Single line suction pipette GB/T 22564 fluorite sampling and sample preparation

3 principle

The samples were digested and decomposed by the mixed solution of hydrofluoric acid, perchloric acid and sulfuric acid, and the salts were dissolved with hydrochloric acid. In acidic medium, air- The absorbance of zinc in the test solution was measured at the wavelength of 213.9 nm of the atomic absorption spectrometer, and the mass fraction of zinc was calculated by the calibration curve.

4 reagent

Unless otherwise stated, only the analytical analytical reagents shall be used in the analysis; the water used shall comply with the secondary and secondary requirements of GB/T 6682 Level above the water. 4.1 Hydrochloric acid, ρ = 1.19 g/mL. 4.2 sulfuric acid, ρ = 1.84 g/mL 4.3 hydrofluoric acid, ρ = 1.15 g/mL. 4.4 perchloric acid, ρ = 1.67 g/mL. 4.5 Hydrochloric acid, 1 1. ......

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