Cr @ 1000 µg/mL in 5% HCl, 100ml

Chloride (Cl-), 1000µg/mL in Water, 100ml

Aluminum Standard: Al @ 1000 µg/mL in 5% HNO3, 100mL

S @ 1000 µg/g (0.100 wt%) in #2 Diesel Fuel, 100ml