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GB/T 9268-2008: Determination of freeze-thaw resistance of latex and emulsion paints
Status: Valid GB/T 9268: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9268-2008 | English | 149 |
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Determination of freeze-thaw resistance of latex and emulsion paints
| Valid |
GB/T 9268-2008
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| GB/T 9268-1988 | English | 199 |
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Determination of freeze-thaw resistance of latex and emulsion paints
| Obsolete |
GB/T 9268-1988
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PDF similar to GB/T 9268-2008
Standard similar to GB/T 9268-2008 GB/T 9263 GB/T 9265 GB/T 9266 GB/T 9264 Basic data | Standard ID | GB/T 9268-2008 (GB/T9268-2008) | | Description (Translated English) | Determination of freeze-thaw resistance of latex and emulsion paints | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G50 | | Classification of International Standard | 87.040 | | Word Count Estimation | 5,573 | | Date of Issue | 2008-05-14 | | Date of Implementation | 2008-10-01 | | Older Standard (superseded by this standard) | GB/T 9268-1988 | | Quoted Standard | GB/T 3186; GB/T 9269 | | Adopted Standard | ASTM D2243-1995 (2003), NEQ; ASTM D2243-1995 (2003), NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 8, 2008 (No. 121 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 determination of synthetic resin emulsion as the base material of the water-based paint, and withstood freezing and thawing, its viscosity, anti- condensation or anti- caking without damaging other aspects of change and maintain the original performance level of test methods. This standard applies to the determination of freezing-thawing resistance paint. | GB/T 9268-2008: Determination of freeze-thaw resistance of latex and emulsion paints---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 freeze-thaw resistance of latex and emulsion paints
ICS 87.040
G50
National Standards of People's Republic of China
Replacing GB/T 9268-1988
Determination of freeze-thaw durability paint
Posted 2008-05-14
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard method B corresponds to the standard American Society for Testing and Materials ASTMD2243.1995 (2003) "Standard Test Method for Water
Freeze-thaw durability of the paint, "and ASTMD2243. Consistency level 1995 (2003) is not equivalent.
This standard replaces GB/T 9268-1988 "Determination of freeze-thaw durability of latex paint."
The previous version of Standard GB/T 9268-1988 main technical differences are as follows.
--- Increased A method, which is a method of measuring the general paint industry is resistant to freezing and thawing;
--- The 1988 version of the standard method called B method, and the results of its assessment of the content made more detailed provisions.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee paint pigment.
This standard was drafted. in the construction of Changzhou coating Chemical Research Institute.
The main drafters of this standard. Zhengguo Juan.
This standard was first published in 1988, this is the first revision.
Determination of freeze-thaw durability paint
1 Scope
This standard specifies the determination of synthetic resin emulsion as the base material of the water-based paint, and subjected to freeze-thawed, its viscosity, anti-coagulation or anti-caking
Have damaging other aspects of change and test methods for maintaining the original performance level.
This standard applies to the determination of the freeze-thaw durability paint.
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 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
GB/T 9269 Determination of viscosity of architectural coatings Stormer viscometer method
3 Instruments and Materials
3.1 freezer. a suitable case, its size should be able to accommodate a number of test samples, the inside temperature should be maintained at the desired temperature of the test
± 2 ℃.
3.2 viscometer. Stormer with a paddle-type rotor (Stormer) viscometer.
3.3 Black and white card stock. black reflectance of less than 1%; white reflectance of (80 ± 2)%.
3.4 soft brush or a bar coater.
4 sampling
According to the provisions of GB/T 3186, and take representative samples of the test product.
5 test procedure
5.1 A method
5.1.1 Sample Preparation
After loading the sample volume Stir clean large mouth glass bottles, plastic bottles with closures of 500mL or lining material
Cans charged with an amount of 2/3 of the container, be covered with a lid.
5.1.2 Test procedure
The sample was placed in a freezer tank, freezer temperature is maintained at (-5 ± 2) ℃. Sample tank wall or bottom of the box can not be contacted (the sample can be
Jar on the shelf), at least a gap of 25mm between adjacent sample holder and the sample tank and the tank wall, in order to facilitate the air around the sample
Free circulation of goods. Samples were placed in the freezer canister removed after 18h, then at (23 ± 2) ℃ conditions placed 6h, as a complete freeze
Thaw cycles.
5.1.3 inspection and evaluation of results
After a predetermined number of cycles the sample or agreed to open the container, stir the sample to observe whether the lumps, cohesion and separation. Such as
No, "not degenerate" he said.
5.2 B Law
5.2.1 Sample Preparation
5.2.1.1 The sample Stir volume of 500mL clean charged with closures of large mouth glass bottles, plastic bottles or lined
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