Calibration Std. #1 Back Catalog number: 59892X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2874.11-50-ME Perfluoroundecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2050-94-8 Price on request 98858 Formaldehyde-DNPH Level 1 (0.1ug/mL) Price on request P55DMHXS Perfluoro-5,5-dimethylhexane sulfonate, 200ul x 1.00ug/ml, methanol Price on request