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High Temperature Testing

High temperature testing incorporates a variety of thermal properties including thermal conductivity by fundamental and comparative gradient methods, linear expansion, pyrometric cone equivalent, permanent linear change, creep and refractoriness-under-load (RUL) in compression tested to the international standards BS 1902/EN 993.

  • Thermal conductivity to BS 1902-5.5 panel method by fundamental calorimetry up to 1400°C for thermal conductivity ranges of 0.05 Wm-1K-1 to 20 Wm-1K-1 for dense refractories, solid and loose-fill insulation
  • Thermal conductivity to BS 1902-5.8 split column method up to 1000°C for more conducting materials such as SiC and those requiring a reducing or inert atmosphere (1 Wm-1K-1 to 300 Wm-1K-1)
  • Thermal expansion to BS 1902-5.3 up to 1600°C capable of measuring dual samples to within 1 μm in both air and inert atmospheres
  • Determination of melting point using pyrometric cone equivalent (PCE) to BS 1902-5.2 up to a temperature of 1800°C
  • Permanent linear change (PLC) to BS1902-5.9 up to a temperature of 1600°C
  • Refractoriness under load and creep in compression to BS 1902-4.9 and BS 1902-4.10 respectively to a temperature of 1600°C.

Typical Applications

High temperature testing of refractories and insulators finds many applications in furnace and kiln design and manufacture examining the thermodynamic and thermomechanical characteristics of load-bearing refractory materials and insulation structures.  High temperature testing in conjunction with our refractories consultancy service enables the design, production and maintenance of energy-efficient, structurally safe and long-lived furnaces and other high temperature environments for a range of industries.

Typical Industries using High Temperature Testing

  • Materials
  • Ceramics
  • Furnace and Kiln Design and Manufacture
  • Glass Manufacture
  • Steel Manufacture
  • Insulators
  • Aerospace and Defence.


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  • High Temperature Testing - At a Glance

    • Information: Thermal properties tested to BS 1902 such as thermal conductivity, coefficient of linear expansion, linear expansion characterisation, pyrometric cone equivalent (PCE), permanent linear change (PLC), refractoriness under load (RUL) and creep in compression
    • Sample Quantity: Depending on test - details upon application
    • Data Output: Graphical and tabulated data for all measured thermal properties and characteristics as defined above
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