EPA Method 507 - Performance Check Solution Back Catalog number: 19030 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8951.21-100-ME 3-Chloro-1,2-propandiol-1-monostearate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 31054 EPA Method 552.1 - Haloacetic Acids Price on request 681523 D6-Carbofuran-3-hydroxy, 10mg Price on request