Survey results: How and when is your hood tested? How are biomedical research facilities ensuring laboratory chemical Hood containment of hazardous materials?

摘要

Ensuring proper testing. Aside from annual face velocity testing, there was no consensus on hood performance testing or pass-fail cri- teria for either new installations or routine testing of laboratory hoods. In addition, the number of unclear Or contradictory answers indicated that Many of the respondents were unclear About procedures for testing hood per- Formance and what the results of these Tests mean. All but one of the institutions that Participated in the survey met the ANSI recommendation for routine Performance testing by annual or More frequent face velocity tests.