pH 2.0 Standard @ 25°C

2,3-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 2169-87-1

1,413 µS/cm conductivity solution (230mL)

PCN Native Stock Solution, 1000ng/ml in Nonane, 1,2ml