SAMPLER: FILTER
(0.45- to 1.2-µm cellulose ester membrane,
25-mm; conductive cowl on cassette)
FLOW RATE*: 0.5 to 16 L/min
VOL-MIN*: 400 L @ 0.1 fiber/cc
-MAX*: (step 4, sampling)
*Adjust to give 100 to 1300 fiber/mm²
SHIPMENT: routine (pack to reduce shock)
SAMPLE
STABILITY: stable
BLANKS: 2 to 10 field blanks per set