Table AT1. Chart used to calculate the amount of PFT injected (in grams) based on the injection volume and the dilution of the standard.

Dilution (vol:vol)	Injection vol (mL)	Total PFT (g)
10-9	5.0	4.4 x 10-13
10-9	0.5	4.4 x 10-12
10-7	5.0	4.4 x 10-11
10-7	0.5	4.4 x 10-10
10-5	5.0	4.4 x 10-9
10-5	0.5	4.4 x 10-8
10-3	5.0	4.4 x 10-7
10-3	0.5	4.4 x 10-6

Note: PFT = perfluorocarbon tracer.