Page 20 - CATALOGO MASCARILLAS KN95-FPP2
P. 20

Page 11 of 18                     Report No. 20(04)0336P

                                                 EN 149:2001+A1:2009
             Clause     Requirement + Test                             Result - Remark              Verdict


                          A level treadmill is required capable of working at  6 km/h                  P
                          6 km/h.
             8.5.1.3      Test procedure                                                               P
                         Ask the test subjects to read the                                             P
                         manufacturer’s fitting information and if more
                         than one size of particle filtering half mask is
                         manufactured, ask the test subject to select
                         the size deemed by him to be the most
                         appropriate. If necessary the test supervisor
                         shall show the test subjects how to fit the
                         particle filtering half mask correctly in
                         accordance with the fitting information.
                         Inform the test subjects that if they wish to                                 P
                         adjust the particle filtering half mask during the
                         test they may do so. However if this is done,
                         repeat the relevant section of the test, having
                         allowed the system to resettle.

                          The test subjects shall have no indication of the                            P
                          results as the test proceeds.
                         After fitting the particle filtering half mask, ask                           P
                         each test subject ‘Does the mask fit?’. If the
                         answer is ‘Yes’, continue the test. If the answer
                         is ‘No’, take the test subject off the panel,
                         report the fact and replace with another test
                         subject.

                          The test sequence shall be as follows:                                       P
                          a) Ensure the test atmosphere is OFF.                                        P
                         b) Place the test subject in the enclosure.                                   P
                         Connect up the facepiece sampling probe.
                         Have the test subject walk at 6 km/h for 2 min.
                         Measure the test agent concentration inside
                         the particle filtering half mask to establish the
                         background level.
                          c) Obtain a stable reading.                                                  P

                          d) Turn the test atmosphere ON.                                              P
                          e) The subject shall continue to walk for a further                          P
                          2 min or until the test atmosphere has stabilized.

                          f) Whilst still walking the subject shall perform the                        P
                          following exercises:
                          1) walking for 2 min without head movement or                                P
                          talking;
                         2) turning head from side to side (approx. 15                                 P
                         times), as if inspecting the walls of a tunnel for
                         2 min;





                                                                                        TRF No. EN 149_1A
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