Abstract
Quantitative data on cigarette smoking often include measurements of puffing indices such as puff volume, flow and duration. Workers have used miniature flow (pneumotachograph) heads to monitor the flow of cigarette smoke and integrated this to obtain puff volume. However, if flow heads are calibrated at one fixed temperature and account is not taken of variations in smoke temperature during puffing, an error in the measurement of puff volume is introduced. In order to investigate the magnitude of this error, known puff volumes have been measured. Corrections for variations in smoke temperature and instrument calibration for the flow head used are described and have been applied to the cigarette puff volume measurements.
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