EPA Method 531.1 - Performance Check Solution

4-Chlorotetrahydropyran,1000 µg/mL,MeOH,1mL,

Methyl-2-[4-(2-methylpropyl)phenyl]propanoate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 61566-34-5

Tetra-n-butyltin, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1461-25-2