Page 19 - CATALOGO MASCARILLAS KN95-FPP2

Page 10 of 18 Report No. 20(04)0336P

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

c) filling a small basket (see Figure 1, P
approximate volume = 8 l) with chippings or
other suitable material from a hopper which
stands 1,5 m high and has an opening at the
bottom to allow the contents to be shovelled
out and a further opening at the top where the
basket full of chippings is returned.
The subject shall stoop or kneel as he wishes P
and fill the basket with chippings. He shall then
lift the basket and empty the contents back
into the hopper. This shall be done 20 times in
10 min.

8.5 Leakage P
8.5.1 General test procedure P
8.5.1.1 Total inward leakage P
A total of 10 test specimens shall be tested: 5 10 samples P
as received and 5 after temperature
conditioning in accordance with 8.3.2.

The total inward leakage shall be tested using P
sodium chloride aerosol.

Prior to the test there shall be an examination P
to ensure that the particle filtering half mask is
in good working condition and that it can be
used without hazard.

Examination shall be done in accordance with P
8.2.

For the test, persons shall be selected who are P
familiar with using such or similar equipment.
A panel of ten clean-shaven persons (without P
beards or sideburns) shall be selected
covering the spectrum of facial characteristics
of typical users (excluding significant
abnormalities). It is to be expected that
exceptionally some persons cannot be
satisfactorily fitted with a particle filtering half
mask. Such exceptional subjects shall not be
used for testing particle filtering half masks.
8.5.1.2 Test equipment P
The test atmosphere shall preferably enter the P
top of the enclosure through a flow distributor,
and be directed downwards over the head of
the test subject at a minimum flow rate of 0,12
m/s. The concentration of the test agent inside
the effective working volume shall be checked
to be homogeneous. The flow rate should be
measured close to the subject’s head.

TRF No. EN 149_1A