ASTM Issues Non-Destructive Argon Test Standard
ASTM International has issued a new standard designed to provide a method for evaluating gas concentration inside IG units without destroying or altering the edge seal. The new standard, ASTM E2649, Test Method for Determining Argon Concentration in Sealed Insulating Glass Units Using Spark Emission Spectroscopy, was developed by E06.22 subcommittee on Durability Performance of Building Constructions, part of ASTM's Committee E06 on Performance of Buildings.
"Until now, there was no nondestructive test method to sample gas concentrations in IG units,” says Jeffery Haberer, technical services engineer, Cardinal Glass Industries, and E06.22.05 task group chair. “Previously, IG units were either altered with a septum for gas sampling or the edge seal of the IG was destructively broken in order to sample the gas content.”
Haberer expects the new standard will be used by certification groups and researchers to show the compliance of an IG unit to hold gas at a minimum accepted level.