Phosphate (PO4-3) as P, 1000µg/ml in Water, 500ml

Chlorine, 10000µg/g (1.00wt%) in Mineral Oil,100ml

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

Strontium Standard: Sr @ 1000 µg/mL in 5% HNO3, 100mL