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GB/T 23992-2009: Determination of chlorohydrocarbon content in coatings -- Gas chromatographic method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23992-2009 | English | 189 |
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Determination of chlorohydrocarbon content in coatings -- Gas chromatographic method
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GB/T 23992-2009
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Basic data | Standard ID | GB/T 23992-2009 (GB/T23992-2009) | | Description (Translated English) | Determination of chlorohydrocarbon content in coatings -- Gas chromatographic method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G50 | | Classification of International Standard | 87.040 | | Word Count Estimation | 8,823 | | Date of Issue | 2009-06-02 | | Date of Implementation | 2010-02-01 | | Quoted Standard | GB/T 3186 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 8, 2009 (No. 148 overall) | | 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 the use of gas chromatography chlorinated hydrocarbon content of the coating method. The chlorinated hydrocarbons include: dichloromethane, dichloroethane, chloroform, trichloroethane, carbon tetrachloride and other types of chlorinated hydrocarbons. This standard applies to all kinds of paints and coatings raw materials. | GB/T 23992-2009: Determination of chlorohydrocarbon content in coatings -- Gas chromatographic method
---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.
Gas chromatography of chlorinated hydrocarbons content in paint
ICS 87.040
G50
National Standards of People's Republic of China
Determination paint chlorinated hydrocarbon content
Gas chromatography
Posted 2009-06-02
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee paint pigment.
This standard was drafted. CNOOC Changzhou coating Chemical Research Institute, Kunshan City Shiming Technology Development Co., Ltd.
The main drafters of this standard. Yu Bin, Chen Ruifang, Duzhang Sen.
Determination paint chlorinated hydrocarbon content
Gas chromatography
1 Scope
This standard specifies the determination coatings chlorinated hydrocarbon content by gas chromatography method. These include chlorinated hydrocarbons. dichloromethane, dichloroethane
Dioxane, chloroform, trichloroethane, carbon tetrachloride and other types of chlorinated hydrocarbons.
This standard applies to all kinds of paints and coatings raw materials.
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 according to study
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
Principle 3
The sample was diluted diluted with a solvent into the gas chromatograph, a capillary column by bringing a test compound with other compounds completely separated
After electron capture detector, within the standard method.
4 Reagents and materials
4.1 Carrier gas. nitrogen, purity ≥99.995%.
4.2 auxiliary gas (septum purge and makeup). with a carrier gas of nitrogen the same nature.
4.3 Internal standard. the sample is not present compound, the compound and other compounds can be completely separated from the chromatogram. Purity of at least
99% (mass fraction) or known purity. For example. bromopropane like.
4.4 Calibration. compounds used for calibration, purity (mass fraction) of at least 99% purity or known.
4.5 Dilution solvent. the organic solvents suitable for dilution of the sample does not contain any substances interfere with the determination of the purity of at least 99% (by mass)
Or known purity. For example. water-borne coatings can be used acetonitrile, dimethylformamide, methanol, or the like; solvent-based paints can be used ethyl acetate, n-hexyl
Dioxane and the like.
5 Equipment
5.1 Gas chromatograph, with the following configuration.
5.1.1 Inlet and dividing device, and vaporizing chamber liner can be replaced.
5.1.2 programmed temperature controller.
5.1.3 Detector
The following three types of detectors either.
5.1.3.1 electron capture detector (ECD).
5.1.3.2 has been calibrated and tuned mass spectrometer or other mass selective detector.
5.1.3.3 have been calibrated Fourier transform infrared spectroscopy (FT-IR spectrometer).
NOTE. If you use 5.1.3.2 or 5.1.3.3 detector for qualitative identification of the test compound, the instrument should be connected to a gas chromatograph and according to the instrument manufacturer
Suppliers for related instructions.
5.1.4 Column. should be effective separation of the test compound. Such as. (5% phenyl) methyl polysiloxane 95% capillary column or equivalent models.
5.2 Injector. feed capacity is at least twice the volume of the sample.
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