Calibration Standard 1 Back Catalog number: 52021A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2721.16-K-IO 4,4'-Dimethylbibenzyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 538-39-6 Price on request 681954 Tebufenpyrad, 10.0 µg/ml, Acetone, 10ml Price on request 50623 EPA Method 300.0 Anions Mix A Price on request