IP method 224 for determining trace amounts of lead in aviation fuels and a variety of other petroleum products. Two test procedures are specified by the IP 224 for this determination. Spectrophotometric at 520nm and Comparator using the Lovibond® disc 251700(5/17) and 5mm and 20mm w680/OG fused optical cells 

Please note: the Lovibond® disc 251700 (5/17) is also used for the determination of lead in urine and is supplied labelled as such.

142000 142000 Comparator instrument to bring the sample and the glass filters together for colour matching.
171010 171010 A standardised bench-top light source that guarantees constant and uniformed lighting conditions for colour matching.
For use with the Comparator 2000+.
251700 251700 5/17 Trace Concentrations of Lead Disc, 0.002 - 0.02 mg Pb
606790 606790 5mm path length Series Fused Optical Glass
606850 606850 20 mm path length Series Fused Optical Glass