Disinfection; Tightness Test With Test Equipment; Test Rig; Testing - DPI Sekur C607 Serie Manuel D'utilisation Et D'entretien

7.3

Disinfection

Mask disinfection is necessary when it is worn by different users in order to prevent
hygienic or sanitary problems. Disinfection can be performed in a container after cleaning
or can be performed by the equipment SONOREX SUPER RK514BH or RK1028CH which
can be supplied by D.P.I. s.r.l.. Keep in mind that detergent and disinfecting agent
neutralize each other when used at the same time, therefore baths have to be kept
separate washing carefully the container among the two. Disinfection can be performed
only with authorized (disinfectant cod. 4437.0360) 5% diluted in water. At the end rinse
in running water and dry with the same precautions as of paragraph 7.2.
8

Tightness test with test equipment

In the event the mask has been disassembled in order to be cleaned or to have some
component parts replaced, a tightness test must be carried out. Before carrying out the
tightness test, make a visual check. Check valves, housing and rubber gasket in particular,
in order to make sure they are clean. Defective parts must be replaced. Mask which
failed the tightness test cannot be used.
8.1

Test rig

The test equipment consists of an inflatable dummy head, a mouthpiece connector, a
test rig, a plug to seal the exhalation valve and a plug to seal the threaded connector. The
test equipment, allows for a negative or positive pressure test. LABMATIC or LABTRONIC
test equipment can be supplied by D.P.I. s.r.l..
8.2

Testing

Place the mask to be tested onto the inflatable head (wetting the surface with water) and
tighten the head harness. Inflate until the head becomes stable and in good contact
around the sealing edge of the mask. If necessary, adjust better the head harness. Place
the sealing plug on the inlet threaded connector of the mask. Follow the test equipment
instructions as shown in its instruction manual.
8.3

Leak tightness of mask and exhalation valves

The mask and exhalation valves pass the tightness test when, with the exhalation valve
previously damped, after a 10 mbar (1000 Pa) negative pressure is created inside the
mask, the pressure change is not more than 1 mbar (100 Pa) per minute. If the test is
positive, remove the mask from the dummy head and dry it if necessary. The mask can be
used only after passing the tightness test.
9 Storage and transpot
The masks must be stored in place at a temperature not higher than 50°C, protected
from cold and humidity, the rays of sun, intense heat, corrosive substances which can
damage its rubber, shocks, risk of falling down, dust and dirt. The rubber parts must not
be submitted to prolonged tensions and pressures to avoid distortion. The masks must
be stored in their cases or in special cupboards.
The device shall be transported in the original packaging
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