Air Sampling Procedures For Chemicals Contaminants (continued)
Chemical
Sampling Method and
Sampling
Sample Volume in
Contaminant
Collecting Medium
Rate* Per
Liters**
Minute
Minimum
Maximum
--
--
--
Ozone
Preferred:
Ozone meter (direct
reading)
1-2 liters
60
120
Alternate:
All glass midget
impinger
(10 ml of alkaline KI)
--
50
1-2 liters
Pentachlor-
Filter, closed face with
phenol
spacer glass fiber filter
120
90
1.5 liter
Midget impinger (15 ml
of ethylene glycol***)
50-500 ml
5
40
Petroleum
200/400 mg charcoal
solvent vapors
tube
Phenol
260/520 Silica gel tube
50 ml
3
20
200-500 ml
30
120
Phosphoric
200/400 mg high purity
acid
Silica gel tube
50/100 mg FlorisilR tube
50-200 ml
12
48
Polychlorinate
d biphenyls
preceded by 13 um
(PCBs)
glass fiber filter
1-2 liters
60
960
Potassium
Filter cassette, closed
hydroxide
face with spacer
(CE 0.8 um filter)
submitt three blank
filters
*** Do not use antifreeze in place of ethylene glycol.
MD0165
D-8