EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ACQ-SE30-115 Ethanol standard in serum,3.0g/L,serum, 1.5mL Price on request 71493 Quinoxaline-2-carboxylic acid Price on request 10227.14-10MG n-Heptyl 4-hydroxybenzoate-2,3,5,6-d4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. NA 1085-12-7 for unlabelled Price on request