EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673112 Thiamine hydrochloride, 250mg Price on request N676002 Norethindrone-2,2,4,6,6,10-d6, 2,5mg Price on request 70971 n-Octadecane Price on request