EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11672.12-100-IO 2,2',6-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 677559 Octocrylene, 250mg Price on request 70981 1-Octanol Price on request