Internal Std., 4000µg/ml Methylene Chloride, 1ml Back Catalog number: 10009 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 43002 EPA Method 8240 Purgeable Halocarbons Price on request 93111 Aroclor 1254 Price on request 2663.10-100MG Toxaphene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 8001-35-2 Price on request