The procedure is intended for the measurement of less than 25 mg/m3 although it can be successfully applied to concentrations up to 1 000 mg/m3 at 25 °C and 101,3 kPa. Concentrations of less than 1 mg/m3 can be obtained with careful operation. The automatic technique is continuous only in so far as several discrete air samples can be drawn and analysed each hour.
Status: PublishedPublication date: 1989-07
Edition: 1Number of pages: 8
Technical Committee: ISO/TC 146/SC 3 Ambient atmospheres
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