National mandatory standard GB8624 fire test standard

Name: Flame retardant plywood
Brand: Shenghui Wood
Specifications: 1220 * 2440 * (3-25) mm; 1220 * 2810 * (3-25) mm; 1220 * 3050 * (3-25) mm; 1220 * 3660 * (3-25) mm
Thickness tolerance: ± 0.5mm
Flame retardant grade: GB8624-2012 (B1-B / C)
Free formaldehyde: E0 / E1 grade
Density: 580-600kg / m3
Water content: 5.0-14.0%
Adhesive strength: ≥0.70Mpa
Downward static bending strength: ≥24Mpa
Transverse static bending strength: ≥20Mpa
Elastic modulus along grain: ≥5000MPa
Stripe elastic modulus: ≥3500
Water absorption thickness expansion rate: ≤12% (take 15mm plate as test standard)

Standard introduction:
The GB8624 building materials and products combustion performance classification test is divided according to ground materials and non-ground materials, and then determine which grade to choose before performing specific tests.

Grade introduction: There are two standards for the classification of the combustion performance of building materials in China: "Classification Method for Combustion Performance of Building Materials" and "Classification Method for Combustion Performance of Building Materials and Products" (GB8624-2012). Among them, one of the major changes in GB8624-2012 and GB8624-2006 is to classify the classification of the material's combustion performance from A1, A2, B, C, D, E, and F to A, B1, and B2. And B3.

Product advantages:
Excellent flame retardant performance: in accordance with GB8624-2012 "combustion performance classification of building materials and products" B1-B / B1-C level, the same environmental protection performance of natural wood: GB / T 9846-2015 "ordinary plywood" detection of formaldehyde The release amount is 0.05mg / L; the formaldehyde release rate measured according to the American standard ASTM D6006-02 is 0.015mg / (m2.h), which is only 1/5 of the international advanced standards. High plywood strength: All physical and mechanical indicators are in compliance with the "superior product" of GB / T 9846-2015 "Ordinary Plywood", which is the same as high-grade plywood. Good processing performance: it can be directly used for veneering, painting and gluing. Excellent waterproof, moisture, corrosion and insect resistance.

The main purpose:
1. Building decoration materials (ceiling, partitions, wall panels)
2.Wood fire door frame or door leaf
3. Flame retardant wood flooring substrate, flame retardant wood furniture
5. Locomotive, plywood or decorative materials on board