Ecotech HiVol 3000

Downloading Data HiVol 3000 User Manual 1.7
62
5.4.2 Mass concentration calculation
Mass concentration (MC) is calculated using the formula:
V
WW
MC
if
−
=
where
= Final mass of filter element
= Initial mass of filter element
V = Sample volume, either corrected or uncorrected
Calculate the TSP, PM
10
or PM
2.5
concentration (depending on the inlet being
used):
3
STP
if
X
10
V
WW
PMor TSP ×
⎥
⎦
⎤
⎢
⎣
⎡
−
=
TSP = mass concentration of TSP µg/std m
3
PM
X
= mass concentration of PM
X
µg/std m
3
W
i
= initial mass of filter, mg.
W
f
= final mass of exposed filter, mg
10
3
= conversion of mg to µg.
If the corrected sample volume is used, the units for the concentration are standard
μg/m
3
referenced to standard temperature and pressure conditions (STP). If the
uncorrected sample volume is used, the units for the concentration are
μg/m
3
.