Search result: SN/T 2763.8-2014
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Chemical analysis of nickel laterite ore - Part 8: Determination of magnesium oxide content
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SN/T 2763.8-2014
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| Standard ID | SN/T 2763.8-2014 (SN/T2763.8-2014) | | Description (Translated English) | Chemical analysis of nickel laterite ore - Part 8: Determination of magnesium oxide content | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | D40 | | Classification of International Standard | 73.060.99 | | Word Count Estimation | 12,172 | | Date of Issue | 4/9/2014 | | Date of Implementation | 11/1/2014 | | Quoted Standard | GB/T 602; GB/T 6379.2; GB/T 6682; GB/T 7728; YS/T 820.24-2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China | | Summary | This standard specifies the method of flame atomic absorption spectrometry and titration of nickel laterite ore MgO content. This standard applies to the determination of nickel laterite MgO content. |
SN/T 2763.8-2014
(Laterite nickel ore for chemical analysis - Part 8. Determination of magnesium content)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Methods for chemical analysis of nickel laterite ore
Part 8. Determination of magnesium oxide content
Part 8. Determinationofmagnesiumoxidecontent
Issued on. 2014-04-09
2014-11-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 2763 "Methods for chemical analysis of nickel laterite ore" is divided into eight sections.
--- Part 1. Determination of multi-component X-ray fluorescence spectrometry;
--- Part 2. nickel, cobalt content - Flame atomic absorption spectrometry;
--- Part 3. Determination of total iron content of titanium trichloride reduction method;
--- Part 4. nickel, cobalt, aluminum, magnesium, phosphorus content by inductively coupled plasma atomic emission spectrometry;
--- Part 5. copper, zinc and chromium content - Flame atomic absorption spectrometry;
--- Part 6. Determination of inductance nickel, calcium, titanium, manganese, copper, cobalt, chromium, zinc, phosphorus content coupled plasma atomic emission spectrometry;
--- Part 7. iron, nickel, silicon, aluminum, magnesium, calcium, titanium, manganese, copper and phosphorus content - Wavelength dispersive X-ray fluorescence spectrometry;
--- Part 8. Determination of magnesium oxide content.
This section SN/T 2763 Part 8.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This part mainly drafted by. People's Republic of China Liaoning Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this section. Li Changli Plasture Zhang Yanfu, Jiang Xiaoguang, Li Weigang, Wang Caiyun, Lin Chung.
Methods for chemical analysis of nickel laterite ore
Part 8. Determination of magnesium oxide content
1 Scope
SN/T 2763 provisions of this part of the flame atomic absorption spectrometry and titration Na2EDTA laterite nickel ore in magnesia content
Methods.
This section applies to a nickel laterite ore magnesium oxide content, flame atomic absorption spectrometry range. from 0.15% to 5.0%
Na2EDTA titration range. 5.0% to 30.0%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision)
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 7728 Methods for chemical analysis of metallurgical products by Flame Atomic Absorption Spectrometry General
YS/T 820.24-2012 Methods for chemical analysis of nickel laterite Part 24. hygroscopic water - Gravimetric method
The first flame atomic absorption spectrometry
3 Method summary
Samples with hydrochloric acid, nitric acid, hydrofluoric acid digestion, hydrochloric heightening evaporated to near dryness. Dissolved salts with hydrochloric acid, dilute hydrochloric acid solution and strontium
Medium, atomic absorption spectrometer at a wavelength of 285.2nm, using air - acetylene flame, measure the absorbance of magnesium, magnesium oxide calculated amount.
4 Reagents
Unless otherwise stated, all reagents were of analytical grade water to comply with two water GB/T 6682 regulations.
4.1 hydrochloride (ρ1.19g/mL).
Nitrate 4.2 (ρ1.42g/mL).
4.3 Hydrofluoric acid (ρ1.15g/mL).
4.4 perchloric acid (ρ1.67g/mL).
4.5 strontium solution (200g/L). Weigh 20g strontium chloride in 100mL beaker, dissolved in water and transferred to 100mL volumetric flask, dilute with water
Diluted to volume, and mix.
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