Page & Pedersen provides Cryoscope calibration and control standards (408 m°C [422 m°H], 600 m°C ([621 m°H] and 512 m°C [530 m°H]). Cryoscope standards are accurate to ±1.5 m°C. Shelf life is 12 months from manufacture. Certificates of conformance are available for each batch (traceable to ISO 5765). Glass sample tubes and Heat Transfer/Cooling Fluid are also available. Suitable for all freezing-point cryoscopes. Quality products at budget prices!