Respiratory protective devices - Compressed air line breathingapparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.
呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。
2
In circumstances where breathingapparatus must be worn there must also be an attendant wholly concerned with maintaining breathingair supplies.
在必须佩带呼吸装置的情况下，同样必须有一名监护人全职负责保持呼吸空气供应。
3
May be used in machines compressing air for breathing purposes (such as air bottles for divers) provided all compressor units include subsidiary air clean-up apparatus.