ISO 18857-1 4-n-Nonylphenol solution, Calibration standard

(1S,2R,3S,4S)-1,2,3,4-Tetrahydrobenz[a]anthracene-1,2,3,4-tetrol, , Solvent-, Unit , # of units-, Cas.no.

2,4-Dinitrophenol-3,5,6-d3, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 93951-75-8

EPA Method 508 Surrogate Standard