STANDARDS DEVELOPMENT
blebul1a.gif (1048 bytes) American Society of Testing and Materials - ASTM
  • C1199-91 "Standard test method for measuring the steady state thermal transmittance of fenestration systems using hot box methods"
  • E1423-91 "Standard Practice for Determining the Steady State Thermal Transmittance of Fenestration Systems"
  • C976-90 "Standard Test Method for Thermal Performance of Building Assemblies by Means of a Calibrated Hot Box"
  • C236-89 "Standard test Method for Steady-State Thermal Performance of Building Assemblies by Means of a Guarded Hot Box"
  • E 1169-89 "Standard Guide for Conducting Ruggedness Tests"
blebul1a.gif (1048 bytes) American Society of Heating Refrigerating and Air-Conditioning Engineers
    - ASHRAE
  • SPC142P - "Standard method for determining and expressing the heat transfer and total optical properties of fenestration products"
blebul1a.gif (1048 bytes) National fenestration Rating Council - NFRC
  • NFRC 100 - (April, 1997)
    1. Procedure for Determining Fenestration Product U-factors.
    2. NFRC Test Procedure for Measuring the Steady-State Thermal Transmittance of Fenestration Systems.
    3. Section B: Procedure for Determining Door System Thermal Properties (Currently limited to U-factors).
  • NFRC 500 - (September 1997) - "Condensation Resistance", National Fenestration Rating Council
blebul1a.gif (1048 bytes) International Standards Organization - ISO