GB/T 9265-2009 PDF English
US$90.00 · In stock · Download in 9 secondsGB/T 9265-2009: Determination for alkali resistance of film of architectural paints and coatings Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 9265: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 9265-2009 | English | 90 |
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Determination for alkali resistance of film of architectural paints and coatings
| Valid |
| GB/T 9265-1988 | English | 199 |
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Determination for alkali resistance of film of architectural paints and coatings
| Obsolete |
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GB/T 9265-2009: Determination for alkali resistance of film of architectural paints and coatings---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT9265-2009
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 50
Replacing GB/T 9265-1988
Determination for Alkali Resistance of Film of
Architectural Paints and Coatings
Issued on. JUNE 2, 2009
Implemented on. FEBRUARY 1, 2010
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Sampling... 4
4 Test Panel... 5
5 Procedures... 5
6 Inspection and Result Determination of Test Panel... 6
7 Test Report... 6
Foreword
This Standard serves as a replacement of GB/T 9265-1988 Determination for Alkali
Resistance of Film of Architectural Paints and Coatings.
In comparison with the previous GB/T 9265-1988, there are the following main
technical changes.
---The substrate of test panel is modified from asbestos cement board into non-
asbestos fiber cement flat sheet;
---In the result of determination, a stipulation that when pathological phenomena
(bubbles, stripping and pulverization, etc.) of coating emerge, it can be
determined in accordance with GB/T 1766 is added.
This Standard was proposed by China Petroleum and Chemical Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee on Paints
& Pigments of Standardization Administration of China.
The drafting organizations of this Standard. CNOOC Changzhou EP Coating Co., Ltd.,
Kunshan SUNMUN Technology.
The main drafters of this Standard. Wuxuan, Shi Yilei.
The release of previous versions of the standard replaced by this Standard is as follows.
---GB/T 9265-1988.
Determination for Alkali Resistance of Film of
Architectural Paints and Coatings
1 Scope
This Standard specifies the method of determining alkali resistance (saturated calcium
hydroxide solution) of film of architectural paints and coatings.
2 Normative References
Through the quotation in this Standard, the provisions in the following documents
become provisions of this Standard. In terms of references with a specified date, all
the subsequent modifications (excluding the corrected content) or modified versions
are not applicable to this Standard. However, all parties that reach an agreement in
accordance with this Standard are encouraged to explore the possibility of adopting
the latest version of these documents. The latest version of references without a
specified date is applicable to this Standard.
GB/T 1766 Paints and Varnishes - Rating Schemes of Degradation of Coats
GB/T 3186 Paints, Varnishes and Raw Materials for Paints and Varnishes -
Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods
(GB/T 6682-2008, ISO 3696.1987, MOD)
GB/T 9271 Paints and Varnishes - Standard Panels for Testing (GB/T 9271-2008,
ISO 1514.2004, MOD)
3 Sampling
In accordance with the stipulation in GB/T 3186, take representative samples from
products being tested (or each type of products in a multi-coating system).
4 Test Panel
4.1 Materials and Dimensions
Unless it is otherwise stipulated, the substrate of the test panel shall be non-asbestos
fiber cement flat sheet that complies with NAF H Grade-V in JC/T 412.1-2006.In
addition, it shall be flat and not distorted.
4.2 Processing and Preparation
Unless it is otherwise stipulated, test panel shall be processed in accordance with GB/T
9271; then, products being tested shall be coated in accordance with the stipulated
method. Any difference from the requirement in GB/T 9271 shall be indicated in the
test report (refer to Chapter 7).
5 Procedures
5.1 Environmental Conditions
Unless it is otherwise stipulated, the test shall be conducted under the condition of
temperature (23 ± 2) °C and relative humidity (50 ± 5) %.
5.3 Test Procedures
Take 3 previously prepared test panels; use the mixture of paraffin and rosin (mass
ratio. 1.1) to seal up the edges and the back of the test panels. The width of the edge
sealing shall be 2 mm ~ 4 mm.
6 Inspection and Result Determination of Test Panel
After soaking is completed, take out the test panels, then, use water to rinse it. Get rid
of water drops on the panels, the, use filter paper to absorb the water. Immediately
observe whether the surface of the coating manifests discoloration, bubbles, stripping,
pulverization and softening, etc.
7 Test Report
Test report shall at least include the following content.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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