This European Standard specifies minimum requirements for power assisted respiratory protective devices which incorporate a full face mask, half mask or a quarter mask together with a particle filter. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than 17 % by volume). It also does not cover respiratory protective devices designed for escape purposes. Laboratory tests are included for the assessment of compliance with the requirements.
DS/EN 147-1993由丹麦标准化协会 DK-DS 发布于 1993-10-21,并于 1993-10-21 实施。
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