Before manufacturers of insulating glass units can export their products to the US, tests according to ASTM E2190 (or ASTM E2188/ASTM E2189) are required, among other things. Until now, European IGU manufacturers have been supplying their glass to the US for this purpose.
With tests by ift Rosenheim, manufacturers can test their products in Europe and, for example, obtain the NFRC certification relevant for the US - without long transportation routes for test specimens.
As each manufacturer specifies a different certification body, accreditation of ift tests must be carried out by different organizations. ift Rosenheim is currently recognized by NAMI and NFRC. Further bodies will be available shortly - please contact us.

Your Advantages
ASTM E2190 stipulates the testing of insulating glass units according to the standards ASTM E2188 and E2189.
Test according to ASTM E2188
According to ASTM E2188, the frost/dew points of the insulated glazing units are determined. For this purpose, six panes are stored for a total of 15 weeks in a climatic chamber with high humidity and accelerated weathering. According to ASTM E2190, the final frost/dew points must be -40°C or colder.
Test according to ASTM E2189
The resistance of insulated glazing units to fogging is tested according to ASTM E2189. For this purpose, two panes (double insulating glass) or four panes (triple insulating glass) are placed in a fogging box under UV radiation for seven days. If the panes show no visible fogging, the test is passed.

Our Performances after Completion of the Test of IGU/VIG as per ASTM E2190
- Regardless of the result, you will receive a detailed Test report in English.
- If the implementation of tests is complete, you will also receive an ift-Nachweis in German and English.
- We provide support with the application for national technical approval, approval of individual cases or project-related design approval
- You will receive the ift-tested mark free of charge, with which you can market your products tested by ift Rosenheim effectively.
