ANSI Z79.3 : 1983
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
OROPHARYNGEAL AND NASOPHARYNGEAL AIRWAYS,
23-07-2013
12-01-2013
Performance and safety criteria for oropharyngeal and nasopharyngeal airways for human use.
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