Thermal Conductivity Test Method for Engine Coolants by Hot Wire Method by ASTM International

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Management number 211151273 Release Date 2026/04/04 List Price $36.00 Model Number 211151273
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This lab-based test method employs a transient hot wire technique and related equipment to measure thermal conductivity, thermal diffusivity, and volumetric heat capacity of various engine coolants and related fluids, including aqueous and non-aqueous types.

  • Method Overview: Measures thermal properties of engine coolants and related fluids using a transient hot wire technique
  • Direct Measurement: The System accurately determines thermal conductivity and diffusivity without additional input
  • Versatile Application: Suitable for both aqueous and non-aqueous coolants with thermal conductivity between 0.1 to 1.0 W/mK
  • Compatibility: Excludes fluids that react with platinum
  • Temperature Range: Applicable from 20 to 100C
  • Sample Size: Requires approximately 40 mL of sample
  • Pressurization: No external pressurization needed for fluids with vapor pressure 33.8 kPa (4.9 psia) at test temperature
  • Pressurization (High Vapor Pressure): External pressurization required for fluids with vapor pressure >33.8 kPa (4.9 psia) at test temperature
Brand Name ASTM INTERNATIONAL
Manufacturer ASTM International

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