25 ML GLASS IMPINGER. CONSISTING OF A PYREX GLASS TUBE THAT HAS MARKED GRADUATIONS WITH A NOZZLE. DESIGNED TO COLLECT AIRBORNE HAZARDS INTO A LIQUID MEDIUM. USING AN AIR SAMPLER A KNOWN VOLUME OF AIR IS PUMPED THROUGH THE IMPINGER CONTAINING A METHOD SPECIFIC LIQUID. THE LIQUID INSIDE THE IMPINGER IS THEN ANALYSED AT A LABORATORY TO DETERMINE AIRBORNE CONCENTRATIONS.

CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6.