Air Sampling Procedures For Chemicals Contaminants (continued)
Chemical
Sampling Method and
Sampling Rate* Sample Volume in
Contaminant
Collecting Medium
Per Minute
Liters**
Minimum
Maximum
40
25
50-500 ml
Benzene
200/400 mg charcoal
tube
--
--
2-8 hr
or passive monitor
1-4 liters
250
1000
Beryllium
Filter cassette, closed
face with spacer
(um) filter)
1-3 liters
100
1500
Cadmium
Filter cassette, closed
face with spacer
(CE 0.8 um filter
50-500 ml
25
40
Carbon tetra-
200/400 mg charcoal
chloride
tube
1-2 liters
300
500
Chlordane
33/66 mg Chromosorb
102 tube
1 liter
480
--
Chlorpyrifos
Specially constructed
(DursbanR)
only
glass sampling tube
containing a glass fiber
filter and 2 sections of
XAD-2R resin
1.5 liters
20
30
Chlorine
Midget fritted glass
bubbler (100 ml of
methyl orange
reagent)
MD0165
D-3