ASTM-E2649:12 IGU Argon Test Method

astm e2649 12 standard test method for determining argon concentration in sealed insulating glass units using spark emission spectroscopy

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Things about ASTM-E2649-12: Standard test method for determining argon concentration in sealed insulating glass units using spark emission spectroscopy.

1.1 This test method covers procedures for using a spark emission spectroscope to determine the concentration of argon gas in the space between the lites of a sealed insulating glass unit.

1.2 This is a non-destructive test method.

1.3 This test method shall be used only in a controlled laboratory environment.

1.4 This test method is applicable for insulating glass units where argon has been added to the sealed insulating glass cavity and the balance of the gas is atmospheric air.

1.5 This test method is applicable for clear, double-glazed insulating glass units.

1.6 This test method is applicable for double-glazed insulating glass units with one lite having a metallic coating or tinted glass, or both, and with clear glass as the other lite.

1.7 This test method is applicable for triple-glazed insulating glass units only when the center lite of glass has a metallic coating (either low emissivity (low E) or reflective) and both of the other lites are clear glass.

1.8 This test method also includes a procedure for verifying the accuracy of the readings of the test apparatus.

1.9 The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use.

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