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GB/T 1819.11-2017: Methods for chemical analysis of tin concentrates -- Part 11: Determination of aluminium oxide content -- Chrome azure S spectrophotometric method
Status: Valid GB/T 1819.11: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1819.11-2017 | English | 139 |
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Methods for chemical analysis of tin concentrates -- Part 11: Determination of aluminium oxide content -- Chrome azure S spectrophotometric method
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GB/T 1819.11-2017
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| GB/T 1819.11-2004 | English | 199 |
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Methods for chemical analysis of tin concentrates -- Determination of aluminum oxide content -- The chrome azurol S spectrophotometric method
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GB/T 1819.11-2004
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Basic data | Standard ID | GB/T 1819.11-2017 (GB/T1819.11-2017) | | Description (Translated English) | Methods for chemical analysis of tin concentrates -- Part 11: Determination of aluminium oxide content -- Chrome azure S spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D13 | | Classification of International Standard | 73.060 | | Word Count Estimation | 7,742 | | Date of Issue | 2017-09-29 | | Date of Implementation | 2018-06-01 | | Older Standard (superseded by this standard) | GB/T 1819.11-2004 | | Regulation (derived from) | National Standard Announcement 2017 No. 23 | | Issuing agency(ies) | General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 1819.11-2017: Methods for chemical analysis of tin concentrates -- Part 11: Determination of aluminium oxide content -- Chrome azure S spectrophotometric method
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Methods for chemical analysis of tin concentrates-Part 11. Determination of aluminum oxide content-Chromazuzal S spectrophotometric method
ICS 73.060
D13
National Standards of People's Republic of China
Replacing GB/T 1819.11-2004
Methods for chemical analysis of tin concentrates
Part 11. Determination of the amount of aluminum oxide
Chromium Azure S spectrophotometry
Methods for chemical analysis of tinconcentrates-Part 11.
2017-09-29 Posted
2018-06-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 1819 "tin concentrate chemical analysis method" is divided into 21 parts.
--- Part 1. Determination of moisture thermal drying method;
--- Part 2. Determination of tin content potassium iodate titration;
--- Part 3. Determination of iron content cerium sulfate titration method;
--- Part 4. Determination of lead content by flame atomic absorption spectrometry and Na2 EDTA titration;
--- Part 5. Determination of arsenic Arsenic antimony molybdenum blue spectrophotometry and iodometric titration;
--- Part 6. Determination of the amount of antimony; malachite green spectrophotometry and flame atomic absorption spectrometry;
--- Part 7. Determination of bismuth content by flame atomic absorption spectrometry;
--- Part 8. Determination of zinc content by flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of tungsten trioxide; potassium thiocyanate spectrophotometry;
--- Part 10. Determination of sulfur content High-frequency induction furnace combustion infrared absorption method and potassium iodate titration;
--- Part 11. Determination of the amount of aluminum oxide chromium azure S spectrophotometry;
--- Part 12. Determination of the amount of silica silicon molybdenum blue spectrophotometry and sodium hydroxide titration;
--- Part 13. Determination of magnesia, calcium oxide content; Flame atomic absorption spectrometry;
--- Part 14. Determination of copper content by flame atomic absorption spectrometry;
--- Part 15. Determination of fluorine content ion selective electrode method;
--- Part 16. Determination of silver content; Flame atomic absorption spectrometry;
--- Part 17. Determination of mercury content; atomic fluorescence spectrometry;
--- Part 18. Determination of nickel content by flame atomic absorption spectrometry;
--- Part 19. Determination of cobalt content; Flame atomic absorption spectrometry;
--- Part 20. Determination of cadmium content by flame atomic absorption spectrometry;
--- Part 21. Determination of calcium, magnesium, copper, lead, zinc, arsenic, antimony, bismuth, silver content Inductively coupled plasma atomic emission spectrometry.
This section GB/T 1819 Part 11.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part Replaces GB/T 1819.11-2004 "Methods for chemical analysis of tin concentrates Determination of the amount of aluminum oxide Chromium S spectrophotometry
Degree Law ", compared with GB/T 1819.11-2004 this section, the main technical changes are as follows.
--- The upper limit of measurement is changed from "4.00%" to "8.00%";
--- Alkali melting reagent from the original "sodium peroxide" was revised to "sodium hydroxide - sodium hydroxide (mass ratio of 3. 1)";
--- Modify the precision part;
--- Increase the test report terms.
This part is proposed by China Nonferrous Metal Industry Association.
This part of the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for the drafting unit. Yunnan Tin Industry Co., Ltd..
Participated in the drafting of this section. Yunnan Tin Group (Holdings) Co., Ltd., Bayuquan Exit Inspection and Quarantine, Beijing Nonferrous Gold
Is a research institute, the national non-ferrous precious metals product quality supervision and inspection center (Hunan).
The main drafters of this section. Zhao Ru Lin, Zhang Hongling, Zhou Lei, Chu Ning, Lin Qingquan, Zhang Li, Lee Man Chi, Zhang Zhuojia, Xie Lei.
This part replaces the standards previously issued as.
--- GB/T 1830-1979;
--- GB/T 1819.11-2004.
Methods for chemical analysis of tin concentrates
Part 11. Determination of the amount of aluminum oxide
Chromium Azure S spectrophotometry
1 Scope
GB/T 1819 provisions of this part of the determination of the amount of aluminum oxide in the amount of aluminum.
This section applies to the determination of the amount of aluminum oxide in tin concentrate. Measurement range. 0.020% ~ 8.00%.
2 method summary
The sample was melted with sodium hydroxide-sodium hydroxide, leached with sodium hydroxide solution, and the hydroxide precipitate of iron, lead and calcium was filtered off to precipitate
In 1.2mol/L hydrochloric acid medium, tin is reduced by zinc powder, iron is masked by ethylenediaminetetraacetic acid zinc solution, and the solution is buffered by acetic acid-ammonium acetate buffer
Solution, aluminum and chrome azure S and polyethylene glycol octyl phenyl ether to generate a green complex, measured at a wavelength of 610nm spectrophotometer absorbance
Luminosity.
3 reagent
Unless otherwise specified, only reagents that are identified as analytically pure and secondary water are used in the analysis.
3.1 zinc powder.
3.2 zinc oxide.
3.3 Sodium peroxide.
3.4 Sodium hydroxide.
3.5 Disodium EDTA.
3.6 Ammonium acetate.
3.7 anhydrous ethanol.
3.8 Hydrochloric acid (p = 1.19 g/mL).
3.9 Perchloric acid (ρ = 1.68 g/mL).
3.10 Glacial acetic acid (ρ = 1.05 g/mL).
3.11 Ammonia (p = 0.90 g/mL).
3.12 Hydrochloric acid (1 1).
3.13 Hydrochloric acid (1 9).
3.14 ammonia (1 1).
3.15 sodium hydroxide solution (100g/L).
3.16 Ammonium chloride solution (200g/L).
3.17 hydroxylamine hydrochloride solution (100g/L).
3.18 leachate Each 50mL solution contains 3g of sodium hydroxide (3.4) and 1mL of absolute ethanol (3.7).
3.19 Zinc solution (5g/L) Weigh 6.34g of zinc oxide (3.2), add 40mL of hydrochloric acid (3.12), micro-thermal decomposition completely, into 1000mL
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