AIR POLLUTION CONTROL (DUST AND GRIT EMISSION) REGULATIONS
METHOD OF TAKING SAMPLE OF LIQUID FUEL
1. Before any sample of liquid fuel is taken, a quantity of liquid fuel not less than the fuel consumption of the burner at its full rated capacity for 5 minutes shall be run off or consumed.
2. A sample may be taken-
(a) at the burner tip or point of ignition with the furnace, oven or industrial plant not in operation, but with the preheater in commission and fully warmed up; or
(b) when the furnace, oven or industrial plant is in operation, from a suitable test draw-off cock situated at the fuel supply line as close as practicable to the point of ignition.