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Beschreibung

This Standard Reference Material (SRM®) is intended for use as a calibration material for densimeters. NIST-211d is liquid toluene characterized for density, ?(t,p), in the temperature range of -50 ?C to 150 ?C, with pressures up to 30 MPa. A unit consists of four flame-sealed glass ampoules, each containing approximately 5 mL of toluene. Certified values and uncertainties are given for two cases: a special case for near-ambient conditions and the general case covering a wide range of temperature and pressure for degassed and air-saturated samples. /// Sample value(s) - please ask for current certificate.