EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98679 Pyridine Price on request 79061 4-Chlorophenol Price on request 8615.9-KIT Chloropropanol Kit (includes 8614.4), , Solvent-, Unit , # of units-, Cas.no. Price on request