Page 8 - Part II:Assessment of conformity
P. 8

Page 8 of 18                     Report No. 20(04)0336P

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


                          No special measuring devices and methods                                     P
                          are specified, commonly used devices and
                          methods shall be used.
              8.2         Visual inspection                                                            P

                          The visual inspection is carried out appropriate                             P
                          by the test house prior to laboratory or practical
                          performance tests.

              8.3         Conditioning                                                                 P
              8.3.1       Simulated wearing treatment                                                  P
                          A breathing machine is adjusted to 25 cycles/min  25 cycles/min              P
                          and 2,0 l/stroke.                              2,0 l/stroke.

                          For testing, a saturator is incorporated in the  a saturator incorporated by  P
                          exhalation line between the breathing          breathing machine
                          machine and the dummy head,                    and the dummy head

                          The spilling out of the dummy’s mouth and      Incline considered            P
                          contaminating the particle filtering
                          half mask the head shall be incline
              8.3.2       Temperature conditioning                                                     P
                          Exposet masks to the following thermal cycle:                                P

                          a)  for 24 h to a dry atmosphere of (70 ± 3) ℃;                              P
                          b)  for 24 h to a temperature of (-30 ± 3)                                   P
                          ℃;
                          Allow to return to room temperature for at least 4  4h                       P
                          h between exposures and prior to subsequent
                          testing.
             8.3.3        Mechanical strength                                                          P

                          Conditioning shall be done in accordance with EN                             P
                          143.
             8.3.4        Flow conditioning                                                            P

                         A total of 3 valved particle filtering half masks                             P
                         shall be tested, one as received and two
                         temperature conditioned in accordance with
                         8.3.2.

             8.4          Practical performance                                                        P
             8.4.1        General                                                                      P
                          A total of 2 particle filtering half masks shall be                          P
                          tested: both as received.
                         All tests shall be carried out by two test                                    P
                         subjects at ambient temperature and the test
                         temperature and humidity shall be recorded.







                                                                                        TRF No. EN 149_1A
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