Cr has been removed from the system and SiO2 has been added. Dave Dave Lubelski Research Engineer Birck Nanotechnology Center Purdue University (765)494-9102 lubelski at purdue.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: </ECN/mailman/archives/leybold-list/attachments/20160708/bc4837ca/attachment.html>