Page 13 - Part II：Assessment of conformity

Page 13 of 18 Report No. 20(04)0336P

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

The head is arranged to pass over a propane P
burner the position of which can be adjusted.
By means of a suitable gauge, the distance
between the top of the burner, and the lowest
part of the facepiece (when positioned directly
over the burner) shall be set to (20 ± 2) mm.
The test shall be repeated to enable an P
assessment to be made of all materials on the
exterior of the device. Any one component
shall be passed through the flame once only.

8.7 Carbon dioxide content of the inhalation air P
A total of 3 particle filtering half masks shall be 3 samples as received P
tested: all 3 as received.
To measure the CO2 content of the inhaled air, P
5 % of the stroke volume of the inhalation
phase of the breathing machine is drawn off at
the marked place by an auxiliary lung and fed
to a CO2 analyser. The total dead space of the
gas path (excluding the breathing machine) of
the test installation should not exceed 2000 ml.
Measure the carbon dioxide content of the Less than an average of P
inhaled air and record continuously. 1,0 % (by volume).
The test shall be performed until a constant P
carbon dioxide content in the inhalation air is
achieved.
8.8 Strength of attachment of exhalation valve No exhalation valve N
housing
A total of three particle filtering half masks N
shall be tested: one as received, one
temperature conditioned in accordance with
8.3.2 and one after the test described for
mechanical strength in EN 143.

Mount the particle filtering half mask securely N
to a fixture as shown in Figure 9. Apply an
axial tensile force of 10 N to the valve
(housing) for 10 s, and note the results.
8.9 Breathing Resistance P
8.9.1 Test samples and fixture P
8.9.1.1 Valveless particle filtering half masks P

A total of 9 valveless particle filtering half P
masks shall be tested:

3 as received, 3 after temperature conditioning P
in accordance with 8.3.2 and 3 after the test
for simulated wearing in accordance with 8.3.1

TRF No. EN 149_1A