For only the sixth time in nearly 20 years and the first time ever in North American, the members of a very exclusive club have met. The group is composed of licensed operators of the RH vacuum process and the venue was the RH '91 Conference held last month in Toronto, Ontario, Canada. The meeting was a frank, off-the-record discussion of current operating practices, new techniques and innovative
... [Show full abstract] solutions to common problems. This paper discusses the industry in brief.