ASTM International

Standard Test Method for Measuring Waste Glass or Glass Ceramic Durability by Vapor Hydration Test
 N C1663

Annotation

The vapor hydration test method can be used to study the corrosion of a waste forms such as glasses and glass ceramics2 upon exposure to water vapor at elevated temperatures. In addition, the alteration phases that form can be used as indicators of those phases that may form under repository conditions. These tests; which allow altering of glass at high surface area to solution volume ratio; provide useful information regarding the alteration phases that are formed, the disposition of radioactive and hazardous components, and the alteration kinetics under the specific test conditions. This information may be used in performance assessment (McGrail et al, 2002 (1)3 for example).

This test method must be performed in accordance with all quality assurance requirements for acceptance of the data.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2 The precision and bias statements are only valid for glass waste forms at this time. The test may be (and has been) performed on other waste forms; however, the precision of such tests are currently unknown.

3 The boldface numbers in parentheses refer to the list of references at the end of this standard.

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