| Sr.no. |
Test
|
Principle
|
Ref |
|
1. |
TSI 8130 Loading & Penetration
of solid/ oil based particulates through filter material.
|
Loading the Filters against Solid aerosols of NaCl
or oil based aerosols of DOP to measure the efficiency
of the filter. |
NIOSH 42 CFR,Part 84,
|
| 2. |
Penetration
of solid particulates through filter material. |
Filtering face-piece Respirator are tested against
micron sized NaCl particulates to measure the efficiency
of the filter. |
EN 149 :2001
IS 9473 : 2002 |
| 3. |
Penetration
of oil based particulates through filter material. |
An aerosol of paraffin oil droplets is generated
by atomizing heated paraffin oil .The concentration
of this aerosol is measured before and after the filter
to measure the efficiency of the filter. |
EN
149 :2001
IS 9473 : 2002 |
| 4. |
Carbon
Dioxide content of the inhalation air (dead space) inside
the facepiece
|
The apparatus consists essentially of a breathing
machine with solenoid valves controlled by the
breathing machine flow meter, a
CO2 analyser and a humidifier. The carbon
dioxide content of the inhaled air measured
and recorded. |
EN 149 :2001
IS 9473 : 2002 |
| 5. |
Breathing
Resistance & Exhalation flow test of the facepiece
|
To determine the performance of Inhalation &
Exhalation for operation, Leakage & tensile force. |
EN 149 :2001
IS 9473 : 2002 |
| 6. |
Total
Inward leakage of facepiece |
The
laboratory tests to indicate that the filtering half
can be used by the wearer to protect with high probability
against the potential hazard to be expected.
|
EN
149 :2001
IS 9473 : 2002 |
| 7. |
Flammability
of face piece |
To Indicate the material used shall not present a
danger for the wearer and shall not be highly flammable
nature. When test in accordance the face-piece shall
not continue to burn after removal from the flame. |
EN 149 :2001
IS 9473 : 2002 |
| 8. |
Clogging
test of the filter material |
To
Indicate the material used shall not present a danger
for the wearer and shall not be highly flammable nature.
When test in accordance the face-piece shall not continue
to burn after removal from the flame.
|
EN
149 :2001
IS 9473 : 2002 |
| 9. |
Gas
penetration through filter bench test. |
Chlorine/Ammonia/
Organic vapour filters are tested with air mixture at
an appropriate flow, concentration, and humidity. The
breakthrough time is recorded as efficiency of the filter.
|
IS 8522 : 1977
IS 15323 : 2003 |
| 10. |
Field
of Vision test |
The field of vision is the innermost line at any
point of either the field of vision of the facepiece,
or the natural field of vision of men. |
EN
149 :2001
IS 9473: 2002 |
| 11. |
Silica
Dust Test |
Fine Silica dust is fed to a chamber .The test respirator
mounted on a holder is exposed. The unretained suspension
of silica dust on the membrane filter is measured.
|
IS 9473 : 1980 |
| 12. |
Exhalation
leak test |
Exhalation Valve Leakage Test to determine the
diaphragm
leakage through mask. |
IS 9473 : 1980 NIOSH 42 CFR,Part 84 |
| 13. |
Mechanical
Strength |
Before testing for breathing resistance ,filtration
efficiency and clogging ,the filter is subjected to
a test simulating rough usage of the filter. After
this treatment the filters shall show no mechanical
defects and shall meet the requirements for breathing
resistance ,filtering efficiency and clogging
|
EN
149 :2001/
IS 9473 : 2002 |
