EPA Method 8270 Additionals Back Catalog number: 94422 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38367 Total THC - Performance Test GC Price on request 9130.21-5MG Methyl arachidonoate (8c,11c,14c,17c) Price on request 94029 Hexachlorophene Price on request