GB 12441-2018 (GB12441-2018) & related versions
GB 12441-2018: PDF in English
GB 12441-2018
Finishing fire resistant coating
ICS 13.220.20C82
National Standards of People's Republic of China
GB 12441-2018 replaces GB 12441-2005
Finished fire retardant coating
Published on.2018-02-06
2018-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword III
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification and Model 1
5 Technical requirements 2
6 Test method 3
7 Inspection rules 4
8 logo, instruction manual 5
9 Packaging, transportation and storage 5
Appendix A (Normative Appendix) Large Plate Burning Method 6
Appendix B (Normative Appendix) Chamber Combustion Method 10
Foreword
Clauses 5.2, 8.1 and 7 of this standard are mandatory and the rest are recommended.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB 12441-2005 "finished fire retardant coating".
Compared with GB 12441-2005, the main technical changes of this standard except for editorial changes are as follows.
--- Increased the classification and model of the product (see Chapter 4);
--- Revised the technical indicators of the physical and chemical properties of the veneer type fire retardant coating, and deleted the defect category in the technical requirements (see 5.2,.2005 edition)
4.2);
--- Replace the tunnel combustion method with a flame retardancy test (see 6.11, Appendix B of the.2005 edition);
--- Revised inspection rules (see Chapter 7, Chapter 6 of the.2005 edition).
This standard is proposed and managed by the Ministry of Public Security of the People's Republic of China.
This standard was drafted. Sichuan Fire Research Institute of the Ministry of Public Security, Fire Department of the Ministry of Public Security, Fire Products Conformity Assessment Center of the Ministry of Public Security, Sichuan Tianfu
Fireproof Materials Co., Ltd., Wuhan Wuli Coating Co., Ltd., Sichuan Zhuo'an New Material Technology Co., Ltd., Jiangsu Champion Technology Group Co., Ltd.
Limited company, Nanjing Zhantuo Fire Equipment Co., Ltd.
The main drafters of this standard. Cheng Dabin, Bao Guanghong, Wang Pengxiang, Liu Cheng, Yu Wei, Feng Jun, Tang Yong, Pan Wei, Xue Li.
The previous versions of GB 12441-2005 were released as follows.
---GB 12441-1998;
---GB 15442.1-1995, GB/T 15442.2-1995, GB/T 15442.3-1995, GB/T 15442.4-1995.
The previous versions of GB 12441-1998 were released as follows.
---GB 12441-1990.
Finished fire retardant coating
1 range
This standard specifies the terms and definitions, classification and model, technical requirements, test methods, inspection rules, signs, and so on.
Instructions, packaging, transportation and storage.
This standard applies to all types of decorative fire retardant coatings.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 1720 paint film adhesion test method
GB/T 1727 paint film general preparation method
GB/T 1728 paint film, putty film drying time determination method
GB/T 1731 paint film flexibility test
GB/T 1732 paint film impact resistance test method
GB/T 1733 paint film water resistance test method
GB/T 1740 paint film moisture resistance test
GB/T 5907 (all parts)
GB/T 6753.1 Determination of fineness of paints, varnishes and printing inks
GB/T 8625 Test method for flame retardancy of building materials
GB/T 9750 coating product packaging mark
3 Terms and definitions
The following terms and definitions as defined in GB/T 5907 apply to this document.
Thermal protective coating.
4 Classification and model
4.1 Classification
Finished fire retardant coatings can be divided into.
a) Water-based decorative fire-retardant coatings. decorative fire-retardant coatings with water as the dispersion medium;
b) Solvent-based finish fire-retardant coating. a decorative fire-retardant coating with an organic solvent as the dispersion medium.
4.2 Model
The product code of the veneer type fire retardant coating is indicated by the letter SMT, and the dispersing medium characteristic codes are S (water based) and R (solvent respectively).
Sex). The model for the finish type fire retardant coating is as follows.
SMT-
Product code
Dispersed media feature code
Enterprise custom code
Example.
SMT-S/A, which represents water-based veneer type fire retardant coating, the company's custom code is A.
5 Technical requirements
5.1 General requirements
5.1.1 The raw materials used for the production of fire retardant coatings shall comply with the national environmental protection, occupational health and health related laws and regulations.
5.1.2 The coating should be able to be blended and diluted with the specified dispersion medium.
5.1.3 Finished fireproof coatings should be able to be easily constructed by any one or more of brushing, spraying, roller coating and blade coating, and can be dried and cured under normal natural environmental conditions. There should be no pungent odor after it is dried. After film formation, it should be able to form a flat finish, no obvious
Bumps or streaks, no powder, bubbles, cracks, spots, etc.
5.2 Technical requirements
The technical indicators of the finish type fireproof coating shall comply with the requirements of Table 1.
Table 1 Technical indicators of facing fireproof coating
Serial number project technical indicators
1 The state in the container is evenly mixed after stirring, without agglomeration
2 fineness/μm ≤ 90
3 drying time
Dry surface /h ≤5
Hard dry/h ≤ 24
4 Adhesion/level ≤ 3
5 flexibility/mm ≤ 3
6 Impact resistance/cm ≥ 20
7 Water resistance test after 24h, the film does not wrinkle, does not peel off
8 Moisture and heat resistance After 48h test, the coating film has no blistering and no shedding.
9 flame resistance time/min ≥ 15
10 The average length of the remaining length of the flame-retardant test piece should be ≥150mm, and the remaining length of the combustion of none of the test pieces is zero; the average smoke temperature measured by the thermocouple in each test group should not exceed.200°C.
11 mass loss/g ≤ 5.0
12 carbonization volume/cm3 ≤ 25
6 Test methods
6.1 Test preparation
6.1.1 Test substrate
The physical and chemical properties test (except for the heat and humidity resistance test) shall comply with the requirements of GB/T 1727. Moisture and heat resistance test substrate is
The transparent plexiglass plate has a size of about 150 mm x 70 mm x 1 mm. The substrate for fire performance testing shall comply with Appendix A and Appendix B.
Provisions. The size of the flame retardant test substrate shall comply with the requirements of GB/T 8625, and the dimensions of other fireproof test substrates shall comply with the appendix.
A and Appendix B provisions.
6.1.2 Preparation of test pieces
The preparation of physical and chemical properties test pieces shall be carried out in accordance with the method specified in GB/T 1727. The preparation of fireproof test pieces shall be in accordance with 6.11 and Appendix A.
And the method specified in Appendix B.
6.1.3 State adjustment
The physical and chemical properties of the test piece shall be adjusted for 48 h under ambient conditions of temperature (23 ± 2) ° C and relative humidity of 50% ± 5%. Fire performance test
After being painted to the specified wet coating ratio, the material should be adjusted to the temperature under the conditions of temperature (23±2) °C and relative humidity 50%±5%.
The amount is constant (weighed twice every 24 hours, the mass change is not more than ±0.5%).
6.1.4 Test environmental conditions
The six tests of fineness, drying time, adhesion, flexibility, impact resistance and water resistance of the coating should be at a temperature (23 ± 2) ° C, relative humidity
50% ± 5% of the environmental conditions.
6.2 Status in the container
Stir the sample in the container with a stirrer or mix the sample of the multi-component coating according to the specified ratio to observe whether the coating has agglomeration or not.
Evenly.
6.3 Fineness
According to the method specified in GB/T 6753.1.
6.4 Drying time
According to the method specified in GB/T 1728 (method A).
6.5 Adhesion
According to the method specified in GB/T 1720.
6.6 Flexibility
According to the method specified in GB/T 1731.
6.7 Impact resistance
According to the method specified in GB/T 1732.
6.8 Water resistance
According to the method specified in GB/T 1733 (method A).
6.9 Heat and humidity resistance
According to the method specified in GB/T 1740.
6.10 Flame resistance time
Perform in accordance with the method specified in Appendix A.
6.11 Flame retardancy
The test piece substrate and preparation shall comply with the requirements of Appendix A. At the same time, the fireproof coating shall be applied to the test piece before being coated on the surface of the test piece.
side. The test is carried out in accordance with the method specified in GB/T 8625.
6.12 Quality loss
Perform in accordance with the method specified in Appendix B.
6.13 Carbonization volume
Perform in accordance with the method specified in Appendix B.
7 Inspection rules
7.1 Inspection classification
7.1.1 Factory inspection
The factory inspection items are in the state of the container, fineness, drying time, adhesion, flexibility, impact resistance, water resistance, heat and humidity resistance and
Flame resistance time.
7.1.2 Type inspection
The type inspection items are all inspection items specified in 5.2. Type inspection should be carried out in one of the following cases.
a) Trial-t...
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| Standard ID | GB 12441-2018 (GB12441-2018) | | Description (Translated English) | Finishing fire resistant coating | | Sector / Industry | National Standard | | Classification of Chinese Standard | C82 | | Classification of International Standard | 13.220.20 | | Word Count Estimation | 18,199 | | Date of Issue | 2018-02-06 | | Date of Implementation | 2018-09-01 | | Drafting Organization | Ministry of Public Security Sichuan Fire Research Institute, Ministry of Public Security Fire Department, Ministry of Public Security Fire Products Conformity Assessment Center, Sichuan Tianfu Fireproof Materials Co., Ltd., Wuhan Wuli Coatings Co., Ltd., Sichuan Zhuo'an New Material Technology Co., Ltd., Jiangsu Champion Technology Group Co., Ltd. Nanjing Exhibition Extension Fire Equipment Co., Ltd. | | Administrative Organization | Ministry of Public Security | | Proposing organization | Ministry of Public Security | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration |
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