EPA Method 8260 C-19 Standard Back Catalog number: 93256 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E1230 1-Ethoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl)benzene, 1g Price on request 673112 Thiamine hydrochloride, 250mg Price on request 32352 1,1-Dichloropropanone-2 Price on request