RO
SR EN 405:1999
Respiratory protective devices. Velved filtering half masks to protect against gases or gases and particles. Requirements, testing, marking
This European Standard specifies performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filtering half masks which do not have valves, or are fitted only with exhalation valves. 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). Laboratory and practical performance tests are included for the assessment of compliance with the requirements.
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Status :
Withdrawn
Approval date : 9/8/1998
Publish date : 9/9/1998
Withdrawal date : 10/31/2003
Number of pages : 34
ICS : 13.340.30 Respiratory protective devices
Technical Committee : 227 - Protective personal equipment
- Normative reference SR EN 143:1997
- Normative reference SR EN 132:1995
- Normative reference SR EN 140+A1:1997
- Replaced by SR EN 405:2003