Test methods for transparent materials for aircraft glazing -- Part 20: Determination of retention of strength after crazing for as-cast acrylics
飞机玻璃用透明材料试验方法第20部分:铸态丙烯酸树脂龟裂后强度保持力的测定
2000-10-31
DIN 18820-4
Glass fibre reinforced unsaturated polyester (GF-UP) and phenacrylic (GF-PHA) resin structural composites - Testing and inspection
承重结构构件用纺织玻璃纤维增强不饱和聚酯和苯丙烯酸树脂层压板（GF-UP、GF-PHA）；测试和质量控制