EPA Method 515.1 - Performance Check Solution

5-Methyl-1-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 51149-87-2

Hydrogensulfide, 2000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 7783-06-4

Chlorophenol Standard, Stock Solution 15 Analytes, each concentration as listed in ethanol; unit: 5x1mL 2066.6 2,3-Dichlorophenol [576-24-9] 400 µg/mL 2064.6 2,4-Dichlorophenol [120-83-2] 400 µg/mL 2065.6 2,5-Dichlorophenol [583-78-8] 400 µg/mL 2069