Classification of fire doors and related performance standards – steel fire door, wooden fire doors – Fire Industry
Fire doors English name: firedoor Designated by the Ministry of Economic Affairs approved laboratories, according to January 1, 2009 implementation of the new fire door from the national standard GB_12955-2008, fire doors fire resistance test passed the test, and the Bureau of Standards Ministry of Economic Affairs issued the certificate and verify the log authorized to identify who called the fire doors. According to the U.S. NFPA and IBC specification defines the "fire doors" to "can work together to provide a degree of opening fire protection department of any fire door, door door frames, Hardware And other parts of the portfolio. "
New national standard of fire doors and GB12955-1991, GB14101-1993 the main changes compared to the following:
? Increase of fire doors in accordance with the contents of classified material;
? On the classification of fire resistance of fire doors were modified from the original press A, B and C categories, according to this edition, "insulated fire doors (A class)," "part of the heat insulation fireproof door (B category) "and" non-insulated fire doors (C) "for classification;
? On the materials used in fire doors require more comprehensive and specific, in addition to materials other than metal and increased burning of the material properties and material burning smoke toxicity requirements;
? To delete from the outside the building for fire doors, wooden doors of the resistance to pressure deformation resistance, air permeability and water penetration resistance performance requirements;
? On fire Lock More specific performance requirements;
? On Fire Hinge (hinge) and more specific performance requirements;
? Of the closed device performance requirements more specific;
? On Fire Glass More specific requirements;
? Increased the quality requirements of the doors of fire doors and test methods;
? Increase in the width direction of curvature of the door the requirements and test methods;
? Increased surface fitting door and frame clearance requirements and test methods;
? Increased flexibility of fire door requirements and test methods;
? Increase the reliability of fire door requirements and test methods;
? On the doors of fire doors has improved test methods distortions;
? Increase of door and door frame of the lap size measurement methods;
? Increased Criteria;
New standard from the International, part of the introduction of foreign standards and non-heat insulation fireproof door concept and requirements for fire doors, fire doors on the classification of insulation from the original only in the classification of fire doors, replaced by insulation fire door (A class), some of fire door insulation (B class) and non-insulated fire door (C class) classification; the same time, the original A, B, C fire resistance of fire doors adjusted to 1.5h, 1.0 h and 0.5h, fire doors enrich the range of products in China, an increase of the practical application of choice for fire doors only need to have some insulation or fire integrity requirements of applications that can use some of insulated or uninsulated fire doors. New standard also provides that if the filling material inside the door, should be harmless to the human body non-toxic fire insulation to reduce the impact on human health. These provisions not only make more rational set of fire doors, fire doors and lower production costs and raw material consumption, consistent with Environmental protection And the construction of economical society. Meanwhile, the new standard also increased steel fire doors and other wood materials content and requirements of fire doors for new materials, new Technology Applications and new fire door production, testing provides a technical basis, expanding the fire door manufacturer's development.
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