CAN3 Z223.25-M86(R1999)

1. Scope1.1This Standard applies to the measurement of vinyl chloride in air, using grab samples or integrated samples, usually collected by continuous adsorption in a sorbent tube over a period of time.1.2This Standard employs gas chromatography for the measurement of concentrations of vinyl chloride in air between 0.01 mg?m-3 and 2600 mg?m-3 at 25?C and 101.3 kPa.1.3Grab samples may be employed for vinyl chloride concentrations down to about 0.5 mg?m-3; for lower concentrations an integrated sample is required.Note: All concentrations referred to throughout this Standard are based on standard conditions of a temperature of 25?C and an atmospheric pressure of 101.3 kPa, unless otherwise stated.