EPA Method 504 Back Catalog number: 81806 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8888.6-10MG HCH (BHC), Technical, neat, Solvent-neat, Unit 10MG, # of units-1, Cas.no. 608-73-1 Price on request 51058 ASTM D-4815 Calibration Mix #1 Price on request 70980 n-Docosane Price on request