EPA Method 601 - Purgeables Mix #2 Back Catalog number: 44022R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679942 Procaine hydrochloride, 250mg Price on request 680420 Bis(2-ethylhexyl) maleate, 250mg Price on request 12009.9-100-ME (+/-)-Normetanephrine-a,β,β-d3 HCl, 100µg/ml in Me Price on request