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SN/T 2762-2011: Determination of fluoride in graphite for import and export. Ion chromatography
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2762-2011 | English | 189 |
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Determination of fluoride in graphite for import and export. Ion chromatography
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SN/T 2762-2011
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Basic data | Standard ID | SN/T 2762-2011 (SN/T2762-2011) | | Description (Translated English) | Determination of fluoride in graphite for import and export. Ion chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Q51 | | Classification of International Standard | 73.080 | | Word Count Estimation | 7,750 | | Date of Issue | 2011-02-25 | | Date of Implementation | 2011-07-01 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | ?AQSIQ-Inspection [2011] 90 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the ion chromatographic method graphite fluoride content. This standard applies to the determination of the import and export graphite fluoride content. | SN/T 2762-2011: Determination of fluoride in graphite for import and export. Ion chromatography---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.
Determination of fluoride in graphite for import and export.Ion chromatography
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of the import and export of graphite fluoride content
Ion Chromatography
Issued on. 2011-02-25
2011-07-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard GB/T 1.1-2009 given rule drafting.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shandong CIQ.
The main drafters of this standard. Qi Jialin, Cui He, Li, Zhang Xiaowen, Wang Zhaoxing Kun, Zhao Liang, Wang Chonglin, Xuejun Hua, Xu Ming, Gao Jianguo,
Wang Yanting.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of the import and export of graphite fluoride content
Ion Chromatography
1 Scope
This standard specifies the ion chromatographic method graphite fluorine content.
This standard applies to the determination of the import and export of graphite fluoride content.
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.
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
3 Method summary
High temperature molten sample with sodium hydroxide to extract, wash out, after filtration volume, volume solution by ion chromatography. Retention time qualitative, external standard
Statutory amount.
4 Reagents and materials
Unless otherwise specified, this standard reagents used were of analytical grade, test water as a water GB/T 6682 regulations.
4.1 sodium hydroxide.
4.2 fluoro standard solution. GB W (E) 080549, standard value 1000μg/mL, or equivalent person.
4.3 fluoro standard working solution. accurate Pipette fluoro standard solution (see 4.2) 1.0mL, placed in plastic 100mL flask, diluted with water to
Scale, mixing spare. This solution was equivalent to 10μg/mL.
4.4 filter, 0.22μm, nylon.
5. Apparatus
5.1 ion chromatograph with conductivity detector.
5.2 electronic balance, a sense of the amount of 0.001g.
5.3 muffle furnace, temperature 500 ℃ ± 10 ℃.
5.4 Nickel Crucible, φ30mm × 30mm, or equivalent person.
Step 6 Analysis
6.1 Sample Preparation
Nickel crucible (see 5.4) in a sample was weighed 0.5g, accurate to 0.001g, added 2g of sodium hydroxide (see 4.1), cover the crucible lid, place
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