pH 9.0 Standard @ 25°C

1,2,4-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2717-42-2

2,3,3',4,6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

2-Methylphenol, 100 µg/ml, Methanol, 5ml