Submit Optical Properties

Spectral Data File Submission Information

The documents below detail the optical property submission process.  Glazing suppliers must submit specific samples (read LBNL-49790 below) to a testing laboratory, or use their own testing facilities,instructing that lab to provide specific data outlined in the documents below (see Glazing Measurement Location Information below).  After the data submission, LBNL alerts NFRC that a supplier has submitted data that needs to be "marked" in the International Glazing Database( IGDB) as suitable for NFRC and peer reviewed. NFRC 302 governs the peer review process that glazing data must go through before NFRC approval.  Once each quarter, LBNL publishes an update to the IGDB showing those marks (indicated by a # sign) that indicate NFRC approval.  Finally, simulators may now use the "marked" data to calculate insulating glazing unit performance.

Film manufacturers and laminant suppliers must also submit specific sample to a testing lab. Please call Ray McGowan at 240-821-9510 with specific questions.

• NFRC Documents

• Glass Supplier Checklist
• Fee Schedule (current schedule shown on this page)
• NFRC 200-2004 (click here to go to Technical Documents page)
• Film property submission instructions (aftermarket film rating only)

• Fill out and fax these forms to NFRC HQ @ 301-589-3884 or email to rmcgowan@nfrc.org :

• Glass Measurement Location Information
• Glass Supplier Contact information

• Lawrence Berkeley National Laboratory (LBNL) Documents:

  • Brief Summary of How to Prepare and Submit Data to the IGDB
    • Data Susmission Procedure (LBNL-49790)
  • International Glass Database Documentation