Calibration Standard Kit Back Catalog number: 53090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673495 Buprofezin, 100 µg/ml, Ethyl acetate, 5ml Price on request 681429 Closantel sodium, 100mg Price on request C14582000 Lactic acid, 100mg Price on request