COD Calibration Standard Back Catalog number: 50434 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L429-IS Method 429 Internal Standard Solution, 100µg/ml in Isooctane/25% toluene, 1,2ml Price on request S-4005-5K-ACX5 3,4-Dimercaptotoluene 5000µg/mL in acetone, 5x1mL Price on request 82403 (Use Part# 82423) EPA Method 8240A Mix #3 Price on request