Fire tests on building materials and structures-Part 20: Method for determination of the fire resistance of elements of construction (general principles)
The sample exposed to high temperature and pressure conditions, the test samples within the specified time bearing weight, integrity and insulation.
BS 476-20 Focus on
1． Duration of fire resistance
2． Loadbearing capacity and impermeability
3． Insulation
4． Integrity
BS 476-20 fire resistance test time
30 minute
60 minute
90 minute
120 minute
150 minute
180 minute
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Testing to：
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