ASTM E2188-10 Test Procedure: Expectations
Test-unit failure caused by workmanship issues related to the initial fabrication of the 14 x 20 in.2 (350 x 500 mm2) units is normally expected to be seen very early in the testing process, typically in the first couple of weeks of high humidity . Once
Copyright by ASTM Int’l (all rights reserved); Tue May 6 12:07:08 EDT 2014 Downloaded/printed by
Rochester Institute Of Technology pursuant to License Agreement. No further reproductions authorized.
past this point, test units of the configuration in this study can be expected to complete the entire cycle without evidence of increased frost temperatures or argon loss caused by workmanship of the construction. If there was a sign which indicated that a unit was either demonstrating higher frost temperatures (therefore gaining moisture from the outside atmosphere) or losing argon, which could be interpreted as the induced effects of edge-seal strains at the PIB-to-glass or PIB-to – spacer interface.