EN 149 pdf free download
EN 149 pdf free download.Respiratory protective devices – Filtering half masks to protect against particles – Requirements, testing, marking.
6 Designation
Particle filtering half masks meeting the requirements of this European Standard shaH be designated in the following manner:
E Particle filtering half mask EN 149, year of publication, classification, option (where “D” is an option for a non re-useable particle filtering half mask and mandatory for re-useable particle filtering half mask). jI
Ei EXAMPLE Particle filtering half mask EN 149:2001 FFPI NR D
7 Requirements
7.1 General
In all tests all test samples shall meet the requirements.
7.2 Nominal values and tolerances
Unless otherwise specified, the values stated in this European Standard are expressed as nominal values. Except for temperature limits, values which are not stated as maxima or minima shall be subject to a tolerance of ± 5 %. Unless otherwise specified, the ambient temperature for testing shall be (16 – 32) °C, and the temperature limits shall be subject to an accuracy of ± 1 °C.
7.3 Visual inspection
The visual inspection shall also include the marking and the information supplied by the manufacturer.
7.4 PackagIng
Particle filtering half masks shall be offered for sale packaged in such a way that they are protected against mechanical damage and contamination before use.
Testing shall be done in accordance with 8.2.
7.5 Material
Materials used shall be suitable to withstand handling and wear over the period for which the particle filtering half mask is designed to be used.
After undergoing the conditioning described in 8.3.1 none of the particle filtering half masks shall have suffered mechanical failure of the facepiece or straps.
Three particle filtering half masks shall be tested.
When conditioned in accordance with 8.3.1 and 8.3.2 the particle filtering half mask shall not collapse. Any material from the filter media released by the air flow through the filter shall not constitute a hazard or nuisance for the wearer.
Testing shall be done in accordance with 8.2.
7.6 CleanIng and disinfecting
E If the particle filtering half mask is designed to be re-usable, the materials used shall withstand the cleaning and disinfecting agents and procedures to be specified by the manufacturer.
Testing shall be done in accordance with 8.4 and 8.5. With reference to 7.9.2, after cleaning and disinfecting the re-usable particle filtering half mask shall satisfy the penetration requirement of the relevant class. Testing shall be done in accordance with 8.11.困 7.7 Practical performance The particle filtering half mask shall undergo practical performance tests under realistic conditions. These general tests serve the purpose of checking the equipment for imperfections that cannot be determined by the tests described elsewhere in this standard. Where practical performance tests show the apparatus has imperfections related to wearer’s acceptance, the test house shall provide full details of those parts of the practical performance tests which revealed these imperfections. Testing shall be done in accordance with 8.4. 7.8 Finish of parts Parts of the device likely to come into contact with the wearer shall have no sharp edges or burrs. Testing shall be done in accordance with 8.2.7.12 Carbon dioxide content of the inhalation air The carbon dioxide content of the inhalation air (dead space) shall not exceed an average of 1,0 % (by volume). Testing shall be done in accordance with 8.7. 7.13 Head harness The head harness shall be designed so that the particle filtering half mask can be donned and removed easily. The head harness shall be adjustable or self-adjusting and shall be sufficiently robust to hold the particle filtering half mask firmly in position and be capable of maintaining total inward leakage requirements for the device. Testing shall be done in accordance with 8.4 and 8.5. EN 149 pdf download.
