(E-BOOK) This standard applies to reusable and disposable
impression trays used in dentistry for delivering impression materials into the
oral cavity for the purpose of making impressions (negative copies) of teeth and
oral tissues. It applies to trays made of plastic, aluminum, stainless steel and
nickel or chrome plated brass for the purposes of full arch dentulous or
edentulous, partially edentulous, partial arch and water cooled impressions.
(Reaffirmed September 8, 2014)