1,2,4-Butanetriol, 1mg/ml in pyridine, 5 x 20ml

o-Phenylphenol, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 90-43-7

pH 1.0 Standard @ 25°C

Total Acid Number Standard 3.0