Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-1613STOCK EPA Method 1613 Native Stock Solution, 1.2ml, nonane Price on request 673847 Chlormequat chloride, 100 µg/ml, Water, 1ml Price on request 13400-0401D-100AN Bisphenol A-d16, 100µg/ml in Acetonitrile, 5ml Price on request