EPA Method 507 Surrogate Standard Back Catalog number: 19049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 43022 Phenol-d6 Price on request 95282 Potassium butylxanthate (as butylxanthate acid) Price on request 8756.X-100MG Bisphenol A bis(diphenyl) phosphate, techn., Rx product of Phosphoric trichloride, biphenol A and phenol, techn.,neat,neat,100mg, Price on request