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SN/T 2649.2-2010: Determination of asbestos in import and export cosmetics. Part 2: X-ray diffraction and polarized light microscope method
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| SN/T 2649.2-2010 | English | 389 |
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Determination of asbestos in import and export cosmetics. Part 2: X-ray diffraction and polarized light microscope method
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SN/T 2649.2-2010
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Basic data | Standard ID | SN/T 2649.2-2010 (SN/T2649.2-2010) | | Description (Translated English) | Determination of asbestos in import and export cosmetics. Part 2: X-ray diffraction and polarized light microscope method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y42 | | Classification of International Standard | 71.100.70 | | Word Count Estimation | 15,119 | | Date of Issue | 2010-11-01 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | National Quality Inspection (2010) 582 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the cosmetic X-ray diffraction Determination of asbestos polarizing microscope qualitative and quantitative methods. This standard applies to cosmetic talcum powder as raw material Determination of asbestos. | SN/T 2649.2-2010: Determination of asbestos in import and export cosmetics. Part 2: X-ray diffraction and polarized light microscope method
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Determination of asbestos in import and export cosmetics.Part 2. X-ray diffraction and polarized light microscope method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of the import and export of asbestos in cosmetics
Part 2. X-ray diffraction - polarizing microscopy
Part 2. X-raydiffractionandpolarizedlightmicroscopemethod
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 2649 "Determination of asbestos in the import and export of cosmetics" is divided into two parts.
--- Part 1. X-ray diffraction - Scanning electron microscopy;
Part --- Article 2. X-ray diffraction - polarizing microscopy.
This section SN/T 2649 Part 2.
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 Jiangsu Entry-Exit Inspection and Quarantine Bureau, Chinese Academy of Inspection and Quarantine.
The main drafters of this section. Li Jianjun, Feng Ya-Hui, Cheng Wei, Lu Zhigang, Sun defense, Wang Yachun, Fan Xin, Yan Yan.
Determination of the import and export of asbestos in cosmetics
Part 2. X-ray diffraction - polarizing microscopy
1 Scope
This section SN/T 2649 provisions of the X-ray diffraction cosmetics - qualitative and quantitative methods polarized light microscopy determination of asbestos.
This section applies to the determination of talc powder as a raw material in cosmetics asbestos.
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.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Asbestos asbestos
Fibrous silicate mineral serpentine (chrysotile) and amphibole fibrous silicate minerals (such as. amosite, crocidolite, tremolite
Stone, actinolite, anthophyllite), an aspect ratio greater than 3.
3.2
Preliminary analysis of the sample primaryanalyticalsample
After ashing, sieve analysis treated samples.
3.3
Secondary analysis of a sample secondaryanalyticalsample
Preliminary analysis of the sample after acid treatment for quantitative analysis.
3.4
Fibrous particles fiberousparticles
Particle aspect ratio of greater than 3.
4 Method summary
The sample was ashing, grinding made a preliminary analysis of the sample, the X-ray diffraction and polarized light microscopy combined with determination, to confirm the preliminary analysis of the sample
The presence or absence of asbestos.
Preliminary analysis of the sample by acid treatment, enriched after drying on glass fiber filters provide a secondary analysis of the sample by X-ray diffraction substrate
Standard absorption correction method (see Appendix A) measured diffraction intensity of asbestos, asbestos content calculated according to the diffraction intensity.
5 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade, the water reached at least two water purity GB/T 6682 regulations.
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