GB 15442.1-1995 Fire performance classification and test methods for decorative fire retardant coatings Fire performance classification

This standard specifies the classification of fire performance of decorative fire retardant coatings. This standard applies to the classification of fire performance of fire retardant coatings applied on the surface of combustible substrates. GB 15442.1-1995 Classification and test methods of fire performance of decorative fire retardant coatings Classification of fire performance GB15442.1-1995 Standard download decompression password: www.bzxz.net

Part 1 Testing methods and standards for main building materials h. Observation records;
i. Test conclusion;
j. Signatures of the test host and the person in charge of the test unit, and the seal of the test unit. Additional notes:
This standard is proposed by the Ministry of Public Security of the People's Republic of China. This standard is under the jurisdiction of the National Fire Standardization Technical Committee. This standard is drafted by the Tianjin Fire Science Research Institute of the Ministry of Public Security. The main drafters of this standard are Li Juntong, Zhou Guoping, Yang Zhaolin, Tian Lanyun, Ji Xiangan, and Jie Fenglan. 8. "Fire performance classification and test methods of decorative fire retardant coatings Fire performance classification" GB15442.1--19951 Subject content and scope of application
This standard specifies the classification of fire performance of decorative fire retardant coatings. This standard applies to the fire performance classification of fire retardant coatings applied to the surface of combustible substrates. 2 Reference standards
GB9278 Conditioning of coating specimens and test temperature and humidity GB12441 General technical requirements for decorative fire retardant coatings GB/T15442.2 Classification and test methods for fire retardant performance of decorative fire retardant coatings Large plate burning method GB/T15442.3 Classification and test methods for fire retardant performance of decorative fire retardant coatings Tunnel burning method GB/T15442.4 Classification and test methods for fire retardant performance of decorative fire retardant coatings Small chamber burning method 3 Terms
3.1 Flame retardant time: The time (min) required for the temperature of the back-fired surface of the test plate to reach 220°C or for penetration of the test plate to occur under specified substrate and specific burning conditions.
3.2 Flame propagation ratio: When the flame propagation ratio of the asbestos board is "0", and the flame propagation ratio of the oak board is "100", the surface flame propagation characteristic data of the test material. 3.3 Fire retardant performance: expressed by combustion mass loss and carbonization volume. 3.3.1 Mass loss: The difference in mass before and after combustion of the specimen under the specified coating ratio and specified combustion conditions (g). 3.3.2 Carbonization volume: The product of the maximum length, maximum width and maximum depth of carbonization of the substrate under the specified coating ratio and specified combustion conditions (cm3).
4 Technical requirements
4.1 Physical and chemical properties of fire retardant coatings
4.1.1 The physical and chemical properties of fire retardant coatings shall comply with GB12441 For the provisions of Article 4.2, see Table 1. Sequence
Thirteen, fireproof materials
Physical and chemical properties of decorative fireproof coatings
State in the container
Fineness, (μm)
Drying time (h)
Adhesion (grade)
Flexibility (mm)
Impact resistance (kgcm)
Water resistance (h)
Moisture and heat resistance (h)
Technical indicators
No lumps, evenly mixed after stirring
≤100
No wrinkles or peeling for 24h, slight gloss loss and discoloration are allowedNo bubbling or shedding for 48h, slight gloss loss and discoloration are allowedThe environmental conditions for the physical and chemical performance test shall be in accordance with GB92 78, Article 3.1. 412
4.2 Classification of fire retardant performance of fire retardant coatings
The fire retardant performance of fire retardant coatings shall be graded according to the corresponding indicators listed in Table 2. 4.2.1
Fire retardant performance levels and index sequence for decorative fire retardant coatings
Flame resistance time (min)
Flame spread ratio
Fire resistance
Mass loss (g)
Carbonization volume (cm3)
Indicators and levels
When fire retardant coatings cannot simultaneously meet the performance indicators specified for a certain level, the lowest level performance data shall be used as the basis for classification.
4.3In addition to the inspection items specified in Tables 1 and 2, fire retardant coatings shall also be graded according to the fire retardant coatings. According to the characteristics and intended use of the material, increase the inspection items, and make necessary supplementary tests according to the corresponding national standards and other recognized test methods. 5
Test method
5.1 Physical and chemical properties
Test according to the provisions of GB12441.
5.2 Flame resistance time
Test according to the provisions of GB/T15442.2. 5.3 Fire spread ratio
Test according to the provisions of GB/T15442.3. 5.4 Fire resistance
Test according to the provisions of GB/T15442.4. 1034
Part I Test method standard for main building materials Additional notes:
This standard is proposed by the Ministry of Public Security of the People's Republic of China. This standard is under the jurisdiction of the Seventh Subcommittee of the National Fire Standardization Technical Committee. This standard was drafted by the Sichuan Fire Science Research Institute of the Ministry of Public Security. This standard is formulated with reference to the "American Fire Code" NFPA703 "Standard for Fireproof Impregnated Wood and Fireproof Coatings for Buildings". The main drafters of this standard are Chen Genbao, Shen Shufeng and Cheng Daobin. 9. "Fire performance classification and test methods of decorative fire retardant coatings - large plate combustion method" GB/T15442.2--1995
1 Subject content and scope of application
This standard specifies the flame retardant properties of fire retardant coatings applied on the surface of combustible substrates under specified conditions. This standard is applicable to the determination of flame retardant properties of decorative fire retardant coatings. 2 Reference standards
GB9278 Conditioning of coating sample state and temperature and humidity of test 3 Test equipment
3.1 Test device
The test device consists of a specimen rack, a burner, a jet aspirator, etc. (see Figure 1). 3.1.1 The test rack is a frame made of 30mm×30mm angle steel, and its internal dimensions are 760mm×760mm×1400mm. The lower end of the frame has a foot height of 100mm, and the upper end is used to place the specimen.
3.1.2 The asbestos pressure plate is made of 900mm × 900mm ×20mm asbestos plate, with a circular hole of 500mm in diameter in the center.
3.1.3 The burner is composed of two copper sleeves with an inner diameter of 42mm, a wall thickness of 3mm and a height of 42mm and an inner diameter of 28mm, a wall thickness of 3mm and a height of 25mm, installed on a nominal diameter of 77//77777/777077777777777
Figure 1 Test device
1-Test piece; 2-Asbestos pressure plate; 3-Thermocouple; 4-Test stand; 5-Burners; 6-Fuel gas regulating valve; 7-Jet aspirator; 8-Blower; 9-Air regulating valve 54mm, with a center hole diameter of 14mm. bzxZ.net
3.1.5 The air volume of the blower is 15m2/min.
40mm×32mm reducer straight pipe joint. The distance from the burner port to the test piece is 730±6mmz
3.1.4 The jet aspirator consists of a reducer tee pipe joint with a nominal diameter of 32mm×32mm×15mm and a nozzle screwed into one end of the tee pipe joint. The nozzle length is
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