EPA Method 8260B Surrogate Standard Back Catalog number: 23004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 58074 Tungsten (W) Price on request 9279.23-100-ME Pravastatin sodium, 100µg acid/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 81131-70-6 Price on request 59474 Anions Mix #2 Price on request