Mixed Calibration Standard 5 Back Catalog number: 52057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38208 Kerosene as TPH in Water Price on request 73631 Loperamide, 1000µg/ml in MeOH, 1ml Price on request 678964 Pyrene, 10 µg/ml, Cyclohexane, 10ml Price on request