Coating standard: National Standard: fire performance of facing fire retardant coating GB 15442.1-199

Core tips: 1 subject content and scope of application This standard specifies the classification of fire performance of facing fire retardant coating This standard is applicable to the fire performance classification of fire retardant coating applied to the surface of combustible substrate 2 reference standards GB 9278 temperature and humidity for condition adjustment and test of paint samples GB 12441 general specification for facing fire retardant coating GB / T 15442.2 classification and test methods of fire performance of facing fire retardant coatings large plate combustion method GB / T 15442.3 finish type Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Coating home news:: 1 subject content and scope of application this standard specifies the classification of fire performance of decorative fire retardant coating this standard is applicable to the classification of fire performance of fire retardant coating applied to the surface of combustible base materials 2 Reference standard GB 9278 temperature and humidity for condition adjustment and test of coating sample GB 12441 general technical conditions for facing fire retardant coating GB / T 15442.2 fire performance classification and test methods for facing fire retardant coating GB / T 15442.3 fire performance classification and test methods for facing fire retardant coating GB / T 15442.4 tunnel combustion method Classification and test methods for fire performance of facing fire retardant coatings -- chamber combustion method -- term 3.1 fire resistance time: under the specified base material and specific combustion conditions, the time required for the back fire surface temperature of the test panel to reach 220 ℃ or the penetration of the test panel (min) 3.2 flame propagation ratio: when the flame propagation ratio of asbestos board is "0" and that of oak board is "100", the flame propagation characteristic data of the surface of the tested material 3.3 fire resistance performance: expressed by combustion mass loss and carbonation volume 3.3.1 mass loss: the mass difference before and after combustion of the test piece under the specified coating ratio and specified combustion conditions (g) 3.3.2 carbonization volume: the product (cm3) of the maximum length, width and depth of the substrate carbonized under the specified coating ratio and combustion conditions 4 Technical requirements 4.1 physical and chemical properties of fire retardant coating 4.1.1 physical and chemical properties of fire retardant coating shall meet the provisions of 4.2 in GB 12441, as shown in Table 1 Table 1 Physical and chemical properties of finishing fire-retardant coating No item technical index 1: no caking in the container, 2 fineness in uniform state after mixing, um ≤ 100 surface drying ≤ 43 drying time, H dry ≤ 244 adhesion, grade ≤ 35 flexibility, mm ≤ 36 impact resistance, mm ≥ 207 water resistance, h24h wrinkle free, no peeling off, slight loss of light and discoloration allowed, 8 humidity and heat resistance, 4.1.2 the environmental conditions for physical and chemical performance test shall be in accordance with 3.1 of GB 9278 4.2 fire performance classification of fire retardant coating 4.2.1 the fire performance of fire retardant coating shall be determined according to the corresponding indexes listed in Table 2 Table 2 fire performance level and index no of finishing fire retardant coating: item index and level I, level II, level I, fire resistance time, min ≥ 20 ≥ 102, flame propagation ratio ≤ 25 ≤ 753, fire resistance mass loss, G ≤ 5 ≤ 15, carbonized volume, cm3 ≤ 25 ≤ 754.2.2 when the fire retardant coating fails to reach the performance index of a certain level at the same time, the lowest level performance data shall be used as the basis for classification 4.3 in addition to the inspection items specified in Table 1 and table 2, the inspection items shall be added according to the characteristics and intended use of the fireproof coating, and necessary supplementary tests shall be conducted according to the corresponding national standards and other approved test methods 5 The test method shall be in accordance with the provisions of GB 12441 5.1 physical and chemical properties shall be tested in accordance with GB 12441 5.2 the fire resistance time shall be tested according to the provisions of GB / T 15442.2 5.3 the flame propagation ratio shall be tested according to the provisions of GB / T 15442.3 5.4 the fire resistance shall be tested according to the provisions of GB / T 15442.4 Additional note: 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 sub committee of the National Fire Protection Standardization Technical Committee This standard is drafted by Sichuan Fire Science Research Institute of the Ministry of public security This standard is formulated with reference to NFPA 703 standard for Fire Retardant Impregnated Wood and fire retardant coating for building Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant 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