美利体育登录入口官网:BS EN 943-1:2015+A1:2019 防危险固体、液体和气体化学品(包括液体和固体气溶胶)的防护服 1型(气密)防化服性能要求
Protective clothing against dangerous solid, liquid and gaseous chemicals, including liquid and solid aerosols. Performance requirements for Type 1 (gas-tight) chemical protective suits