Calibration Std. #1 Back Catalog number: 59892X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38245 UCMR3 - Method 537 - Water - PT PFOA Mix Price on request 1994.10-50-IO 2-Chloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 91-58-7 Price on request 10271.17-K-ME Zopiclone-d4, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 43200-80-2 Price on request