EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4324-10-10PE Sulfur Calibration Standard 2 1688,0 Hydrogensulfide [7783-06-4] 0185,2 Dimethylsulfide [75-18-3] 0190,3 Ethylmethylsulfide [624-89-5] 0933,4 Thiophene [110-02-1] Concentration; 10ppm, wt% Solvent: n-Pentane Screw cap Price on request 679565 D7-Nequinate, 10mg Price on request 0977.27-25MG d2 C27 ??? (20R)-Cholestane,neat,neat,25mg Price on request