Thanks for visiting ! This is an AAMA 502 test done by yours truly Building Envelope Testing, LLC. This was a monster buck chamber covering a specimen that was 388.5 X 106. The chamber was so big that the test was divided into 2 sections. No problem for BET ! We were able to maintain the pressure with our larger lab pack and get the testing done. Did they pass? That is confidential and only for the client. Customer confidentiality is one of our main goals besides quality and customer service.