Quantachrome Ultrapyc 1000 Gas Pycnometer - Status: Down

  • Current Status: Down
  • Training: View Topics/Sessions
  • Use Rates:
    • External Academic & Government: $54.00/Hour
    • External Affiliated Commercial/Industrial: $54.00/Hour
    • External Commercial/Industrial: $72.00/Hour
    • External International Academic: $72.00/Hour
    • Internal Standard: $36.00/Hour
  • Service: Request Service Quote. The Staff rate is $50/hour (Internal) and $55 /hour (External) in addition to the instrument rate.
  • Building: NANO (0070)
  • Room: Particle Analysis 1 (222)
  • In Cleanroom: No
  • Main Contact: Gary Scheiffele
The Helium pycnometer measures density of solids and nonvolatile liquids by gas displacement. Sample volumes can be as small as a few milliliters.Latest Status Log EntryFeb 22, 2023 - Resource Status Down - Suspect initial pressure reading, unreliable results

The Quantachrome Ultrapyc 1000 Gas Pycnometer measures the structural or apparent density of solid or particulate materials using gas displacement. In this method, helium gas is used to access the open porosity in the sample. The apparent density of the material is calculated by determining the volume of the sample by introducing a known quantity of gas into the chamber at two different pressures. The relationship P1V1=P2V2 is used to calculate the volume, and the density is determined by dividing this into the mass of the sample. For materials with closed porosity, this results in the apparent density. For materials without closed porosity, this results in the true density.

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