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SN/T 2621-2010: Acid-grade and ceramic-grade fluorspar. Determination of flotation agents
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2621-2010 | English | 134 |
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Acid-grade and ceramic-grade fluorspar. Determination of flotation agents
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SN/T 2621-2010
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Basic data | Standard ID | SN/T 2621-2010 (SN/T2621-2010) | | Description (Translated English) | Acid-grade and ceramic-grade fluorspar. Determination of flotation agents | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 73.080 | | Word Count Estimation | 5,580 | | Date of Issue | 2010-05-27 | | Date of Implementation | 2010-12-01 | | Quoted Standard | GB/T 22563-2008; GB/T 22564-2008 | | Adopted Standard | ISO 3703-1993, IDT | | Regulation (derived from) | National Quality Inspection (2010) 290; industry standard filing Notice 2010 No. 10 (No. 130 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the gravimetric determination of acid grade and ceramic grade fluorspar content in flotation method. This standard applies to the production of flotation flotation agent content of greater than or equal to 0. 002% (mass fraction) of fluorspar (dry). | SN/T 2621-2010: Acid-grade and ceramic-grade fluorspar. Determination of flotation agents---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.
Acid-grade and ceramic-grade fluorspar.Determination of flotation agents
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Acid grade fluorspar and ceramic grade
Content Determination of flotation agents
(ISO 3703.1993, IDT)
Issued on. 2010-05-27
2010-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard is identical with ISO 3703.1993 (E) "Determination of acid grade and ceramic grade fluorspar flotation content."
For ease of use, this standard made the following editorial changes.
--- Use the "standard" instead of "this International Standard";
--- Delete foreword international standards;
--- Increase in Chapter 6, "each batch of samples should be prepared 2 parts";
--- 7.2 increase "above operation is repeated until the difference between two adjacent measurement value is equal to or less than 0.005g date";
--- Increase in Chapter 8, "the relative value of the difference between the results of two parallel determinations shall not exceed 13.0%, and the arithmetic mean as the final
result".
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Xiamen, People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. Heron Cai Yan, Wang Honghui, Pan honest, Dong Qing wood.
Acid grade fluorspar and ceramic grade
Content Determination of flotation agents
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the method for determination of acid grade and ceramic grade fluorspar flotation agent content by gravimetric method.
This standard applies to flotation flotation agent content production equal to or greater than 0.002% (mass fraction) of fluorspar (dry).
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 22563-2008 fluorite Moisture (ISO 8875.1992, IDT)
GB/T 22564-2008 fluorite sampling and sample preparation (ISO 8868. 1989, IDT)
3 Method summary
Test compound was added diluted hydrochloric acid and a mixture of an organic solvent, thoroughly stirred, removed by vacuum filtration insoluble fluorspar. After the
Said processing flotation filtrate is extracted into the organic phase, after the volatile organic solvent to make the weighing results obtained residue flotation content.
4 Reagents
Unless otherwise indicated, the analysis process using only recognized as analytical reagent grade and distilled water or equivalent purity.
4.1 HCl. ρ = 1.19g/mL.
4.2 1,1,2-trichloroethane. redistilled.
5 Instruments
5.1 vacuum filtration equipment. including a diameter of 120mm, lined with two rapid qualitative filter paper and a Buchner funnel of 1000mL
Brandt beaker.
5.2 funnel. 1000mL.
5.3 with a mechanical stirrer. with a diameter (or φ) 40mm blade electric motor.
6 Sample
According to GB/T 22564-2008 9.1 Preparation of sample for analysis. Each batch should be prepared 2 aliquots.
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