DIN EN 14593-2-2005 呼吸器保护装置.带断续供氧阀门的压缩气体管路呼吸装置.第2部分:带增压半罩式面具的装置.要求、试验、标记
Respiratory protective devices - Compressed air line breathing with demand valve - Part 2: Apparatus with a half mask at positive pressure - Requirements, testing, marking; German version EN 14593-2:2005