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GB/T 21775-2008: Determination of flash point -- Closed cup equilibrium method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21775-2008 | English | 234 |
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Determination of flash point -- Closed cup equilibrium method
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GB/T 21775-2008
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Basic data | Standard ID | GB/T 21775-2008 (GB/T21775-2008) | | Description (Translated English) | Determination of flash point -- Closed cup equilibrium method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A80 | | Classification of International Standard | 13.300 | | Word Count Estimation | 12,111 | | Date of Issue | 2008-05-12 | | Date of Implementation | 2008-09-01 | | Quoted Standard | GB/T 3186-2006; GB/T 20777-2006; ISO 2719; ISO 3170; ISO 3171; ISO 13736; ASTM D 56; DIN 51755 | | Adopted Standard | ISO 1523-2002, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 7 of 2008 (No. 120 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 paint, varnish, paint binders, solvents, petroleum or related products a flash point determination. Suitable for determining the standard water-based paint, water-based paint can be ISO 3679 measurement method. This standard is applicable in the temperature range of instruments adopted under varies from -30��C to 110��C. A mixed solvent containing halogenated hydrocarbon measured results should be given attention, because these mixed solvents may give irregular results. | GB/T 21775-2008: Determination of flash point -- Closed cup equilibrium 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.
Determination of flash point. Closed cup equilibrium method
ICS 13.300
A80
National Standards of People's Republic of China
GB/T 21775-2008/ISO 1523.2002
Determination of flash point - Closed cup equilibrium method
(ISO 1523.2002, IDT)
Posted 2008-05-12
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 1523.2002 "Determination of flash point - Closed cup equilibrium method" (in English).
Appendix A of this standard is an informative annex.
This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points.
This standard is drafted by. Marine Chemicals Research Institute.
Participated in the drafting of this standard. Jiangsu Entry-Exit Inspection and Quarantine Bureau, the Chemical Institute of Standardization, Shanghai Entry-Exit Inspection and Quarantine Bureau, in
National Chemical Construction Corporation, Changzhou coating Chemical Research Institute.
The main drafters of this Standard. Money Su Hua, Miao Ye Qian, Wang Xiaobing, Jiang Wei, Gao Yu Xuan, Zhang Min, Shen Su River.
This standard is the first release.
GB/T 21775-2008/ISO 1523.2002
Determination of flash point - Closed cup equilibrium method
1 Scope
This standard specifies a method for determination of paint, varnish, paint binders, solvents, petroleum or related products flash point.
This standard is not suitable for determination of water-based paint, water-based paint may be used determination method of ISO 3679.
This standard applies to a temperature range depending on the instrument used varies from -30 ℃ to 110 ℃ (see Table 1).
Results mixed solvent containing halogenated hydrocarbons measured should be given attention, as these mixed solvents may give irregular results.
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.
GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528.2000, IDT)
GB/T 20777-2006 Paints and varnishes examination and preparation of samples (ISO 1513.1992, IDT)
Determination of ISO 2719 Petroleum products and lubricants flash point closed cup Pensky-Marens
ISO 3170 Petroleum liquids manual sampling
ISO 3171 Petroleum liquids pipeline automatic sampling
ISO 13736 Petroleum products and other liquids - Determination of flash point Abel closed cup method
ASTMD56 Tag Closed Tester Flash Point standard assays
Determination of mineral oil and a flash point of flammable liquids DIN51755 Abel-Pensky closed cup method
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Under test conditions, the test sample vapor ignition source such that the occurrence and spread burning liquid surface, then corrected to 101.3
KPa under atmospheric pressure, the lowest temperature of the test sample flash fire is the flash point.
Principle 4
4.1 test sample was placed in properly designed and placed in closed cup heated pool. Pool heating temperature should rise slowly, so heating the pool
Difference between the temperature of the test sample and the cup of liquid does not exceed 2 ℃, heating rate of test samples per 1.5min not exceed 0.5 ℃.
4.2 During the heating, ignition time intervals of at least 1.5min. The lowest temperature recorded during flash fire.
5 Chemicals
5.1 cleaning solvent to remove residual test cup and lid on previous test sample.
Note. The choice of solvent should be determined by the residual strength of the material and residues of previous tests. Low volatile aromatics (benzene) solvents can be used to remove oil
Track, mixed solvents such as toluene - acetone - methanol can effectively remove gum residue class.
5.2 calibration liquid, see Appendix A.
6 Instruments
6.1 Test cup and lid. closed cup with a built-in level indicator and lids.
GB/T 21775-2008/ISO 1523.2002
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