Protective clothing against liquid chemicals - performance requirements for clothing with liquid-tight (Type 3) or spray-tight (Type 4) connections, including items providing protection to parts of the body only (Types PB [3] and PB [4])
液体化学品防护服.带液密(3型)或喷雾密(4型)连接件的防护服的性能要求 包括仅对身体部位提供保护的物品(PB[3]和PB[4]型)