Air Sampling Procedures For Chemicals Contaminants (continued)
Chemical
Sampling Method and
Sampling Rate* Sample Volume in
Contaminant
Collecting Medium
Per Minute
Liters**
Minimum
Maximum
1-2 liters
400
1000
Dust (total)
Filter cassette, pre-
weighed, closed
(PVC 5.0 um filter)
1.7 liters
500
816
Dust
Filter cassette, pre─
only
(Respirable)
weighed, with spacer
and cyclone (PVC
5.0 um filter)
0.5
2
20-50 ml
Ethyl alcohol
200/400 mg charcoal
tube
OR
15 min-1.0 hr
passive monitor
9.6
20
20-200 ml
Ethylene oxide ORBO-78 ETD tube
OR
8 hrs
passive monitor
50-100 ml
1
6
Ethyl ether
200/400 mg charcoal
tube
1-2 liters
20
800
Fluorides
Filter, closed face with
(dust)
spacer (PVC 5.0 um
filter)
1-2 liters
20
800
Fluorides
CE 0.8 um filter
(fume)
same as fluorides
dust
100 ml
24
--
Formaldehyde
ORBO-23
formaldehyde tube
3.0 only
200 ml only
Hydrochloric
Silica gel tube
(ceiling)
acid
OR
--
7.5 only
500 ml only
ORBO-70 acid tube
(ceiling)
1-2 liters
15
500
Iron
Filter, closed face with
spacer (CE 0.8 um
filter)
MD0165
D-5