SAMPLER: FILTER, 37-mm diameter quartz fiber; or
polytetrafluoroethylene (PTFE), 0.45 μm pore
size
FLOW RATE: 1 to 5 L/min
VOL-MIN: 15 L
-MAX: 2000 L
SHIPMENT: 4 °C
SAMPLE
STABILITY: Stable for 1 week at about 20 °C and at 4 °C
thereafter to 28 days [3]
BLANKS: 3 field blanks minimum per set