Aldehydes

Air samples are collected on specialized solid sorbent cartridges treated with 2,4 dinitrophenylhydrazine (DNPH). For dynamic air collections, the recommended sample collection volume is 1 liter per minute (L/min) for 60 minutes for a total air collection of 60 liters (L). Once sampled, the tubes are sealed and sent back to the laboratory for HPLC analysis. All testing adheres to standard ASTM D 5197, ISO 16000-3, and the U.S. Environmental Protection Agency's (EPA) test methods.