Calibration Standard Mix 3 Back Catalog number: 53012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MI507-100 Reagent kit for 100 tests (Ammonia LR) Contains: 1 x 20mL NH3-1, 1 x 21mL NH3-2 Price on request 79411 2,4-D, butoxyethanol ester Price on request 673429 Pymetrozine, 100 µg/ml, Acetonitrile, 5ml Price on request