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GB/T 4372.6-2014: Methods for chemical analysis of zinc oxide produced by direct process -- Part 6: Methods for chemical analysis of zinc oxide made by direct process -- Test of metallic zinc
Status: Valid GB/T 4372.6: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4372.6-2014 | English | 149 |
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Methods for chemical analysis of zinc oxide produced by direct process -- Part 6: Methods for chemical analysis of zinc oxide made by direct process -- Test of metallic zinc
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GB/T 4372.6-2014
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| GB/T 4372.6-2001 | English | 199 |
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Methods for chemical analysis of zinc oxide produced by direct process -- Methods for chemical analysis of zinc oxide made by direct process -- Test of metallic zinc
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GB/T 4372.6-2001
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PDF similar to GB/T 4372.6-2014
Basic data | Standard ID | GB/T 4372.6-2014 (GB/T4372.6-2014) | | Description (Translated English) | Methods for chemical analysis of zinc oxide produced by direct process -- Part 6: Methods for chemical analysis of zinc oxide made by direct process -- Test of metallic zinc | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 5,550 | | Date of Issue | 12/5/2014 | | Date of Implementation | 8/1/2015 | | Older Standard (superseded by this standard) | GB/T 4372.6-2001 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2014 No. 27 | | Issuing agency(ies) |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 | | Summary | This Standard specifies Test method zinc oxide direct method of zinc metal. This Standard is applicable to zinc oxide direct method zinc test. The detection limit is: zinc ��0. 065%; aluminum ��0. 008%. | GB/T 4372.6-2014: Methods for chemical analysis of zinc oxide produced by direct process -- Part 6: Methods for chemical analysis of zinc oxide made by direct process -- Test of metallic zinc
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Methods for chemical analysis of zinc oxide produced by direct process Part 6. Methods for chemical analysis of zinc oxide made by direct process - Test of metallic zinc.
ICS 77.120.60
H13
National Standards of People's Republic of China
Replacing GB/T 4372.6-2001
Zinc oxide direct method of chemical analysis methods
Part 6. zinc metal test
Part 6. Testingofmetaliczinc
Issued on. 2014-12-05
2015-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 4372 "Methods for chemical analysis of zinc oxide direct method" is divided into seven sections.
--- Part 1. Determination of the amount of zinc oxide Na2EDTA titration;
--- Part 2. Determination of the amount of lead oxide flame atomic absorption spectrometry;
--- Part 3. copper oxide and cadmium oxide content - Flame atomic absorption spectrometry;
--- Part 4. copper, lead, iron, cadmium and manganese content - Inductively coupled plasma atomic emission spectrometry;
--- Part 5. Determination of manganese content by flame atomic absorption spectrometry;
--- Part 6. zinc inspection;
--- Part 7. Determination of ferric oxide by flame atomic absorption spectrometry amount.
This section GB/T Section 64372 of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4372.6-2001 "direct method zinc oxide chemical analysis of zinc metal test" and GB/T 4372.6-
Compared to 2001, the main changes are as follows.
--- Text format has been modified;
--- Increasing the detection limit;
--- Supplementary test report.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Shuikoushan Hunan Nonferrous Metals Group Co., Ltd., Hunan Nonferrous Metal Research Institute.
This section is drafted. Shuikoushan Hunan Nonferrous Metals Group Co., Ltd. Zhuzhou Smelter Group Co., Ltd., China Nonferrous Guilin
Institute of Geology for Mineral Resources Co., Ltd., Beijing Nonferrous Metal Research Institute, Hunan Chenzhou City Jingui Silver Industry Co., Ltd.
The main drafters of this section. Jie Hui, LIU Ya-ling, Zhou Aiqing, Tang Xiuyun, Jiang Qing, Yuan Yonghai, Zhou deposits, Li Na, ZHANG Jin, Liao Xiaohui,
Xiabing Wei.
This part of the standard replaces the previous editions are.
--- GB/T 4372.6-1984, GB/T 4372.6-2001.
Zinc oxide direct method of chemical analysis methods
Part 6. zinc metal test
1 Scope
GB/T 4372 provisions of this part of the test method zinc oxide direct method zinc metal.
This section applies to zinc oxide direct method zinc test. The detection limit is. metallic zinc ≥0.065%; aluminum ≥0.008%.
2 Method summary
After the sample was mixed with sodium hydroxide and anthraquinone solution into a paste, heating. As a sample containing metallic zinc is showing red wine spots, in order to
Inspection of zinc metal present. Aluminum also has the same reaction, so the results of this test method for metallic zinc, metallic aluminum combined amount. Sulfite,
Sulfide, thiosulfate, iron and other metals do not affect the test.
3 Reagents
3.1 anthraquinone (prior to use pulverized in a mortar).
3.2 Sodium hydroxide solution (200g/L).
4 Instrument
30mL glass dish, the bottom diameter of about 50mm.
5 Sample
5.1 Sample size should be less than 0.10mm.
5.2 Sample advance after 100 ℃ ~ 105 ℃ drying 2h, placed in a desiccator, cool to room temperature.
Step 6 test
6.1 Weigh 10.0g sample.
6.2 The sample is placed in a glass dish and dried, was added 0.10g anthraquinone (3.1), stir with a glass rod. Hydrogen was added 13mL ~ 15mL
Sodium hydroxide solution (3.2). Now tune into a paste with a glass rod and placed on a water bath heating 2min.
6.3 determination
6.3.1 If there is no identifiable red spots exist, the penalty for non-presence of metallic zinc.
6.3.2 If when the recognizable red spots, immediately count the number of spots on the surface, the total number of spots is greater than or equal to 50 spots should be judged as having
Presence of metallic zinc, less than 50 spots still judged as no presence of metallic zinc.
7 Test report
This chapter shall include test reports content. Shall be given at least the following aspects.
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