Steel frame wood fire doors are graded? Grade A, B, C?
In 1993 China formally issued and implemented the wooden fire door products -- GB14101-93 standard "wooden fire door general technical conditions", the standard of wooden fire door products classification, size, technical requirements, test method, inspection rules and signs, packaging, transportation and storage of more detailed provisions. Wood fire door is made of wood or wood products as door frame, door frame, door panels, door filled with insulation materials or door with wood or wood products for frame, solid wood doors, according to need can also on the door on the installation of a composite fireproof glass door is arranged above and is composed of a door frame and composite fireproof glass bright window, and with fire hardware accessories which can meet the fire-resistant integrality and heat insulation door. Wood fire door according to the fire resistance limit is divided into class A, B, C three class fire door, the fire performance requirements were 72min, 54min and 36min, for the production of wooden fire door wood to dry and flame retardant treatment, the moisture content should not be greater than
The material of the product is consistent with the test report; 5, the product performance parameters are consistent with the test report. Three, the product performance test items and the unqualified description of 1 fire door code MFM 1021 B L S K (1.2h) 5 armour a wooden fire door B (0.9h) the code c (0.6h) fireresistance grade hole width code 5 clockwise to close the entrance code 6 counterclockwise direction switch under the direction of code box D single s double cutting cutting cutting code with bright window doors with glass 2 inspection items and unqualified inspection items required description unqualified appearance should be complete without damage, the net surface appearance is not complete, damaged, surface net light, light, no dig burr and hammer India; cutting angle, planer marks, burr and hammer India; cutting angle, lax seam welds should be tight formation; real smooth appearance; in place should be provided in the provisions of the product marks, No product marks, quality inspection quality inspection marks and quality certification (certification mark and quality certification (accreditation) qualified mark) mark. Annals. Size regulation should not exceed the shape description of sample size lattice dimensions should describe the shape of sample size size thickness should be more than the door door fan in the door leaf thick description of sample thickness
. When the condition is limited, the moisture content should not be greater than the local equilibrium moisture content. Wood fire doors for the hardware fittings must be fire-resistant hardware accessories, the main hardware accessories: Fire hinge (hinge), fire plugs, fire doors, fire order and fire door closer, etc.. In the fire resistance test, wood fire doors should be required in the fire resistance time to meet the standard stipulated conditions: integrity: a) discontinuous 10s above the flame burning in the back fire surface; b) in the unexposed surface if cracks, holes or other pore and does not appear the flame, also cannot be away from combustibles these pores 20mm30mm distance ignition in 10s30s; c) samples not collapse. Heat insulation: the average temperature rise of the temperature measuring point on the wooden fire door should be 140 DEG C or the temperature rise of any temperature measuring point will reach to 180 centigrade. Two, product consistency checking consistency of products in the field, should check the following: 1, the appearance of the product is consistent with the standard requirements; 2, the identity of the product is consistent with the standard requirements; 3, the product structure is consistent and test report
