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Canadian Requirements for the Combustibility of Building Mat

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Canadian Requirements for the Combustibility of Building Mat

Author: Date :2021-09-28 Views: order
The Canadian Building and Fire Code Council is responsible for Canada's national building code. The Canadian requirements and test methods for fire performance of building materials are similar to those of the U.S. The test standard for non-combustibility of materials is CAN4-S114-M80, and the test standard for tunnel ovens is CAN/ULC-S102-M88. In addition, Canada has a test standard for placing test samples in the bottom of tunnel ovens-CAN/ULC-S102.2-M88. -S102.2-M88 test method was developed based on the following three main purposes.
One is for horizontally applied materials where only the upper surface may be exposed to heat sources.
Second, for materials that require auxiliary support during testing, such as loose-fitting insulation, but which do not themselves require auxiliary support in practical applications.
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Third, for thermoplastics, where the thermoplastic material will melt or drip when burning.
In comparison, the flame propagation values measured by the ASTM E84 tunnel oven test method, which places the material on top, are somewhat lower than those of the CAN/ULC-S102.2-M88 tunnel oven test, which places the material on the bottom. The Canadian bottom tunnel furnace test solves the problem of loose-fitting insulation for combustion testing.
In addition to some special requirements, CAN/ULC-S102.2-M88 specifies the upper limit of flame propagation class as 25, 75 or 150, and the smoke emission class as 50, 100, 300 and 500 when determining the material. CAN/ULC-S107-M87 is a standard developed specifically for the combustion performance test of roof coverings. Recently, some Canadian experts have recommended the cone calorimeter as the standard test method for determining the combustion rating of materials (ULC-S135-04).

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