414
K. Vaupel et al.
H
Channel height [m]
K
Apparatus specific factor [1]
L
Channel length [m]
m 0
Mass of the powder sample [g]
m 1
Mass of the unused filter [g]
m 2
Mass of the used filter [g]
q r (x) Particle size distribution density [m
−1 ]
Q r (x) Particle size cumulative distribution [1]
S
Dust release number [1]
t
Time [s]
W
Channel width [m]
x
Particle equivalent diameter, particle size [m]
x i,r
Percentile of particle size distribution [m]
X 0.8 Moisture content of a sample at 80% relative humidity
X 0.9 Moisture content of a sample at 90% relative humidity
X A
Moisture content of a sample
Indices
0
Quantity by number
2
Quantity by area
3
Quantity by volume/mass
10
10% percentile
50
50% percentile, median
90
90% percentile
E
Experimental
GP
Greater particles
i
Percentile
mod Modal
P
Prognosed
r
Type of quantity
R
Respirable dust
RD
Rotating drum (Heubach)
SD
Single drop (Palas)
T
Total dust
UNC University of North Carolina
K. Vaupel et al.
H
Channel height [m]
K
Apparatus specific factor [1]
L
Channel length [m]
m 0
Mass of the powder sample [g]
m 1
Mass of the unused filter [g]
m 2
Mass of the used filter [g]
q r (x) Particle size distribution density [m
−1 ]
Q r (x) Particle size cumulative distribution [1]
S
Dust release number [1]
t
Time [s]
W
Channel width [m]
x
Particle equivalent diameter, particle size [m]
x i,r
Percentile of particle size distribution [m]
X 0.8 Moisture content of a sample at 80% relative humidity
X 0.9 Moisture content of a sample at 90% relative humidity
X A
Moisture content of a sample
Indices
0
Quantity by number
2
Quantity by area
3
Quantity by volume/mass
10
10% percentile
50
50% percentile, median
90
90% percentile
E
Experimental
GP
Greater particles
i
Percentile
mod Modal
P
Prognosed
r
Type of quantity
R
Respirable dust
RD
Rotating drum (Heubach)
SD
Single drop (Palas)
T
Total dust
UNC University of North Carolina