BM TRADA has introduced a new environmental chamber to enhance and complement its existing fire testing facilities for fire stopping, fire sealing and fire retardant treated timber products.
The environmental, or climate, chamber can be used to expose products to simulated environmental conditions, either for stand-alone tests or as pre conditioning for further testing. The temperature and humidity within the chamber can be raised and lowered in cycles to simulate accelerated end-use conditions, while additional weathering chambers can be used to simulate exposure to accelerated rainfall.
For CE marking of reactive materials, including intumescents, BM TRADA offers testing both before and after exposure to enable type X, Y1
durability to be demonstrated. The new chamber will allow samples to be preconditioned in line with ETAG 026 ‘Guideline for European Technical Approvals for Fire Stopping and Fire Sealing Products’ and its supporting TR024 technical report.
Similarly, the environmental and weathering chambers can be used in the testing of fire retardant timber products in line with prEN 16755, a new European standard in development to supersede TS 15912. The chambers will be used to gain evidence of increases in hygroscopicity and any decreases in fire performance after exposure to accelerated climatic conditions. BM TRADA currently offers testing for INT1, INT2 and EXT durability of reaction to fire classifications.
The new chamber will also allow BM TRADA to undertake supporting testing required to gain Type HR (humidity resistant) and LR (leach resistant) specifications under the UK Wood Protection Association’s Flame Retardant Specification Manual and ‘WPA Benchmark’ certification scheme for industrial flame retardant treatment of solid timber and panel products.