Acts and Regulations

91-191 - General

Section 342.3
Disposition versions

Full text
Testing
2022-79
342.3(1)With respect to testing, an employer shall ensure that
(a) in the case of a commercially manufactured laboratory fume hood, the fume hood is certified as being tested by the manufacturer following its installation but prior to its first use, and
(b) in the case of a custom-built laboratory fume hood, the fume hood is tested on site by a competent person following its installation but prior to its first use.
342.3(2)A laboratory fume hood tested under subsection (1) shall demonstrate containment not greater than the control level of 0.05 ppm when tested under "as manufactured" test conditions in accordance with the methods described in ANSI/ASHRAE Standard 110-1995, “Method of Testing Performance of Laboratory Fume Hoods” or a standard offering equivalent or better protection.
2022-79