EP 1110-1-23
31 Jan 99
TABLE A-2
NIOSH METHOD 7400
PCM ENVIRONMENTAL AIR SAMPLING PROTOCOL (NONPERSONAL)
Sample Location
Minimum No. Of
Filter Pore Size
Minimum Vol.
Sampling Rate
Samples
(microns) (Note 1)
(Liters) (Note 2)
(liters/min)
Inside Abatement
5/1500 ft2
(Notes
0.45-1.2
1500
2-10
Area
3 & 4)
Each Room in
1
0.45-1.2
1500
2-10
Abatement Area
Less than 1500 ft2
Field Blank
2
0.45-1.2
0
0
Laboratory Blank
1
0.45-1.2
0
0
Notes:
1. Type of filter is Mixed Cellulose Ester.
2. Ensure detection limit for PCM analysis established at 0.005 fibers/cc.
3. One sample should be added for each additional 1500 ft2.
4. No less than 5 samples are to be taken per abatement area, plus two field blanks.
A-12
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