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
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)
1-4 liters
200
1200
Filter cassette, closed
Lead,
face with spacer
inorganic
(CE 0.8 um filter)
(fumes and
dust)
See lead, inorganic
Lead
Chromate
1-2 liters
50
1000
Filter cassette, closed
face with spacer
(CE 0.8 um filter)
Mercury vapor
Mercury vapor
detector
20-200 ml
1
5
Methyl alcohol
260/520-mg Silica gel
tube
20
9
50-200 ml
Methyl
200/400-mg charcoal
bromide
tube two tubes in series
--
--
4 hr
OR passive monitor
20
1
20-500 ml
200/400-mg charcoal
Methyl chloro-
or
tube OR
form (1, 1,
--
--
1-4 hr
passive monitor
1-Trichloroe-
thane)
MD0165
D-6