EPA Method 625 Base/Neutrals Mix #4

17 alpha(H),21ß(H)-25,28,30-Trisnorhopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 85115-38-4

2-Hydroxy-9-fluorenone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 6949-73-1

Triclosan (13C12,99%), 100µg/ml in MTBE, 1,2ml