EPA Method 630/630.1 Stock Solution #1 Back Catalog number: 40024 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10689.52-10-ME Microcystin LF Price on request S-4053-30K-10T Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K Price on request 3882.1-100MG Semicarbazide HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 563-41-7 Price on request