LaMotte LEAD IN AIR TEST KIT - Manual (Page 3)

11. Use chart to convert index reading to a concentration. Record as
mg/M
3 lead.
NOTE: The sampling period specified in the directions corresponds
to concentrations which may be encountered in ambient air
conditions. High concentrations of pollutants in the atmosphere will
require shorter sampling period, while low concentrations will require
longer sampling periods.
LEAD IN AIR CALIBRATION CHART**
TIME COMPARATOR INDEX NUMBER
(min) 1 2 3 4 5 6 7 8
5 0.0 0.2 0.4 0.8 1.2 1.6 2.0 3.0
10 0.0 0.1 0.2 0.4 0.6 0.8 1.0 1.5
15 0.0 0.07 0.13 0.27 0.4 0.53 0.6 1.0
20 0.0 0.05 0.1 0.2 0.3 0.4 0.5 0.75
**Values
in mg/M 3