EPA Method 8240A Volatile Standard #1

3,3'-Dimethylbenzidine, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 119-93-7

Nitrogen Set for ASTM D6366: N @ 10, 25, 50, 75, 100 ng/μL in Isooctane, set(2)

4,6-Dichloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 16766-31-7