√ EN45545-2标准对于豁免的条件也做了明确规定 No requirements apply to products with a combustible mass of <10g not in touching contact with another unclassified product. To assess products the following parameters have to be considered products shall be considered as grouped if: The exposed area of each product is <0.2m2;and the horizontal distance to a product non compliant to Table 2 is <20mm or the vertical distance to a product non compliant to Table 2 is <20mm;
EN45545-2:2020 Railway applications - Fire protection of railway vehicles-Part 2: Requirement for fire behavior of materials and components EN45545-2:2020 铁路应用—铁路车辆的防火保护—第2部分:材料和元件的防火要求。 EN45545-2:2020标准将测试划分为R1-R28这28个不同的类别。根据车辆运行的风险程度不同,火灾风险等级分为HL1-HL3(HL1,HL2,HL3),HL3火灾风险最高。EN45545-2:2020从材料的可燃性、火焰传播速率、热释放量、烟雾释放量和毒性等多个方面进行综合测试及评定。
√ 小区域材料EN45545-2 R22测试项目及标准如下: EN ISO 4589-2: 氧指数测试(根据极限氧气指数进行评估) EN ISO 5659-2: 烟密度测试(Ds测试) NF X70-100: at 600℃的CIT毒性指数测试 参考阅读:EN45545-2防火测试 https://www.fire-test.com/newsinfo/1156098.html