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| GA/T 820-2009 | English | 199 |
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Analytical method of dispersive dyes on the polyester(terylene)fibers
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GA/T 820-2009
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PDF similar to GA/T 820-2009
Basic data | Standard ID | GA/T 820-2009 (GA/T820-2009) | | Description (Translated English) | Analytical method of dispersive dyes on the polyester(terylene)fibers | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 5,577 | | Date of Issue | 2009-02-25 | | Date of Implementation | 2009-03-01 | | Quoted Standard | GA/T 242 | | Regulation (derived from) | Industry standard filing notice 2010 No. 2 (total 122) | | Issuing agency(ies) | Ministry of Public Security | | Summary | This standard specifies the methods for the extraction and testing of disperse dyes on polyester fibers. This standard is applicable to the examination of disperse dyestuffs on polyester fiber in physical and chemical material evidence examination of criminal technology. | GA/T 820-2009: Analytical method of dispersive dyes on the polyester(terylene)fibers---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.
Analytical method of dispersive dyes on the polyester (terylene) fibers
ICS 13.310
A92
People's Republic of China Public Security Industry Standards
Analysis of disperse dyes on polyester fiber
Posted 2009-02-25
2009-03-01 implementation
People's Republic of China Ministry of Public Security
Foreword
This standard by the National Standardization Technical Committee of Criminal Physical Testing Standardization Technical Committee (SAC/TC179/SC4) mention
And the focal point.
This standard was drafted. China Criminal Police College.
The main drafters of this standard. The Recall.
Analysis of disperse dyes on polyester fiber
1 Scope
This standard specifies the test methods to extract and disperse dyes on polyester fiber.
This standard applies to criminal evidence examination CHEMICAL disperse dyes on polyester fiber inspection.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
TESTING term GA/T 242 trace evidence
3 Terms and Definitions
Terms and definitions GA/T 242 established in this standard applies.
4 Extraction
4.1 Reagents
N, N- dimethylformamide (DMF), AR.
4.2 Extraction Method
4.2.1 Micro extractor law
Join 3mLDMF solvent 5mL beaker, about 2cm polyester fibers placed in a beaker immersion 5min, and then with a small tweezers
A sub-folder, the extractor into the micro-sample pool. Take 1mLDMF solvent extraction tube into the sample cell, the heating 1min ~
2min to boiling. Stop heating the fibers to be faded or colorless. After cooling, the fibers, the sample cell extracts were placed colored 1mL
Drip tube or plate to be measured chromatography.
Micro extractor from the sample cell, a condenser vent tube and extracted four parts, shown in Figure 1.
Micro extractor structure of Figure 1
4.2.2 capillary method
The sample is placed in a closed end capillary (inner diameter of about 1mm) was added 5μLDMF solvent, the other end of the capillary is closed. in
Thermostatic oven 120 ℃ 20min, cooling removed. When you use one end of the open file remove extract.
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