What is the difference between Class B and Class B1 flame retardant standards for flame retardant fabrics? In fact, B1 level has become history. The B1 level flame retardant standard is stated in GB8624-1997 “Method for Classification of Combustion Performance of Building Materials”. In fact, according to the latest national standard GB8624-2006, GB8624-2006 has canceled the B1 level flame retardant standard. The grades of GB8624-2006 are classified into seven grades: A1, A2, B, C, D, E, and F.
Starting from March 1, 2007, for building materials that have been inspected in accordance with the old version of GB8624-1997, the inspection report will continue to be valid during the validity period of the inspection report, and the supervision inspection samples and Entrusted inspection samples can still be carried out in accordance with GB8624-1997. In addition, inspection and classification should be carried out according to GB8624-2006.
For guarantee For the smooth implementation of the current specifications and GB8624-2006, various localities can temporarily refer to the following grading comparison relationship. After the specifications are revised, they will be implemented in accordance with the relevant provisions of the specifications:
1. According to the inspection and judgment of GB8624-2006, they are A1 and A2 Level A corresponds to the relevant specifications and Level A of GB8624-1997;
2. Level B and C according to the inspection of GB8624-2006, corresponds to Level B1 of the relevant specifications and GB8624-1997;
3. Those judged to be Class D and Class E according to GB8624-2006 inspection correspond to the relevant specifications and Class B2 of GB8624-1997.
The main specifications of textile flame-retardant Oxford cloth are: 210D Oxford cloth, 300D Oxford cloth, 420D Oxford cloth, 600D Oxford cloth, 1680D Oxford cloth, etc., consultation hotline: 400-8380917
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