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Flame retardant EPS product is not never-burned material, even it’s named “flame retardant”. Actually international standed defined EPS foam building product as “flammable bulding material”, it’s just more flame retardant compared with regular EPS material.
GB8626 China National Standard “lgnitability of building products measurement” stipulates that the sample tested should be stored at least 14 days with temperature 23±2℃ and the relative humidity 50±5%.
GB8624-2006 China National Standard “Fire classification of construction products and building elements”, equal to Europe Union Standard “en13501-1:2002”. The new version of GB8624 has been changed a lot and expanded the understanding to the parameters of burning release rate, burning heat release quantity, burning smoke density and burning smoke density and burning result toxicity. The classifications of self-extinguishing levels are related with the final uses of the products. If the same product has different final uses, it will have different levels of self-extinguishing.
According to EN13238-Conditioning procedures and general rules for selection of substrates and ENISO11925-2:2002- lgnitability of building products subjected to direct impingement of flame-part 2: single-flame source test, the flame retardant EPS with the brand SUNCHEM has passed the tests.
