Modified 525.2 Pesticide Standard #1

1,2-Bis(phenylthio)ethane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 622-20-8

1,3-Phenylenediamine, 1000µg/mL in methylene chloride, 1ml

Guazatine acetate salt, 100µg/ml in Water, 1ml