EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-8290RSS Recovery Standard Solution, 1.2ml, nonane Price on request S-4380-K-ME ISO 17353/23161 Multicomponent OC* Standard Solution, Stock Solution A 8 Analytes, each 1000µg/mL OC in methanol; units: 5x1mL, 5x5mL * OC: Organotin cation OCT: Organotin compound Prod.No. Compound CAS No. OCT 1983.4Mono-n-butyltin trichloride [11 Price on request 71054 2,4,6-Trichloroaniline Price on request