EPA Method 507 - Performance Check Solution

Hydroxyisohexyl-3-cyclohexene carboxaldehyde, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 31906-04-4

4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one, >98%, 25g

Ethanol in serum control EtOH SE (3.0g/L), 10x3ml