COD Calibration Standard Back Catalog number: 50241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30070 EPA Method 502/524 Surrogate Standard #1 Price on request 10416.6-1ML Diglyme Price on request 10772.21-10MG Bisphenol A Bis(2-hydroxypropyl) ether Price on request