<https://buildingleakdetection.com/knowledge-base/faqs/what-is-the-astm-e331-00-water-intrusion-test/>
<http://schema.org/description>
"ASTM E331 is a standard test used to determine water resistance of windows and doors. This test is performed by Building Leak Detection."
<https://buildingleakdetection.com/knowledge-base/faqs/what-is-the-astm-e331-00-water-intrusion-test/>