594 Nitrogen Dioxide Monitor
Associated Analytical Methods: Modified OSHA 109, 182, and 200, NIOSH 6014
Nitrogen Dioxide is trapped on glass fiber filter impregnated with triethanolamine. The resulting nitrite ions are quantitated by colorimetry or ion chromatography.
Before sampling, ship and store at room temperature.
After sampling, store and ship at room temperature. Ship for samples to arrive at the laboratory within 28 days of sampling.
8 hour/TWA sampling.
Note: Reporting limit for a 15 minute/STEL sample is 1 ppm.
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