EPA Method 8260B - Purgeable Internal Std

(2RS)-2-[4-(2-Methylpropyl)phenyl]propan-1-ol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 36039-36-8

Isocaffeine (1,3,9-Trimethylxanthine), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 519-32-4

NCGSI Standard