pH 8.0 Standard @ 25°C

Dibenzo[b,k]anthanthrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 188-42-1

Nicotinic acid, 1000µg/mL, Solvent-water, Unit 1mL, # of units-1, Cas.no. 59-67-6

EPA Method 507 Nitrogen Phosphorus Pesticides