ASTM D-4815 Calibration Mix #3 Back Catalog number: 51060 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679449 Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml Price on request 0483.16-200-T Benzo[b]naphtho[1,2-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-43-6 Price on request 19107 EPA Method 611 - Analytes Price on request