64 Appendix
A
Respirator Facepieces that can be Fit Tested
Full-face elastomeric
Half-face elastomeric
NIOSH series-100 filtering-facepiece
NIOSH series-99 filtering-facepiece
NIOSH series-95 filtering-facepiece (8038 upgrade required for series-95
only)
Fit Factor Measurement
Direct measurement of fit factor (Cout/Cin)
(Mask leakage is measured simultaneously while test subject moves and
breathes.)
Model 8038 P
ORTA
C
OUNT
®
P
RO
+ Respirator Fit Tester
Size
.............................................................. 9.5
x
8.5
x
6.75 in.
(24
x
22
x
17 cm)
Weight
Unit only................................................ 6.8 lb. (3.1 kg)
With standard accessories and case ....... 18 lb. (8.2 kg)
Fit Factor Range
....................................... 1 to greater than 10,000;
1 to 200 for < 99% efficiency
masks
Concentration Range
.............................. 0.01 to 2.5
x
10
5
particles/cm
3
Particle Size Range
.................................. 0.02 to greater than
1 micrometer
Typical Fit Factor Accuracy
..................
±
10% of reading up to fit
factors of 10,000
Temperature Range
Operation ............................................... 32 to 100oF (0 to 38oC)
Storage................................................... -40 to 160oF (-40 to 70oC)
Flow Rate
Sample ................................................... 350
cm
3
/min
Total....................................................... 1000
cm
3
/min (nominal)
Power Requirements
........................................
Autosensing
100 to 250 VAC,
50 to 60 Hz
