Fluoride (F-), 10µg/mL in Water, 500ml

Ammonia as (NH4+)

Nitrogen Set for ASTM D4629: N @ 0, 1, 2, 10, 20, 50, 100, 200, 500, 1000 ng/µL in Isooctane, set (10)

Phosphorus, 1000ug/ml, 100ml