Gentek 3940220, 3940200, 3950320, 3950202, 3940421, 3940320, 3940402, 3950222 Appendix E References

Appendix E: References

Occupational Health and Safety

U.S. Department of Labor

200 Constitution Avenue N.W.

Washington, DC 20210

(202)523-1452 www.osha.gov

Industrial Ventilation-ACGIH

•Fume hood face velocities between 60-100 lfpm

•Maximum of 125 lfpm for radioisotope hoods

•Duct velocities of 1000-2000 fpm for vapors, gasses and smoke

•Stack discharge height 1.3-2.0 x building height

•Well designed fume hood containment loss, <0.10 ppm

Industrial Ventilation, A Manual of Recommended Practice.

24th Edition, 2001

American Conference of Governmental Industrial Hygienists

1330 Kemper Meadow drive Cincinnati, OH 45240-1634 (513) 742-2020 www.acgih.org

ASHRAE 110-1995 Method of Testing Performance of

Fume Hoods

Evaluates fume hood’s containment characteristics

•Three part test: Smoke generation, Face velocity profile, Tracer gas release @ 4 liters per minute

•Rated As Manufactured (AM), As Installed (AI) and As Used (AU)

American Society of Heating, Refrigerating, and Air

Conditioning Engineers

1791 Tullie Circle N.E.

Atlanta, GA 30329

(404)636-8400 www.ashrae.org

ANSI Z9.5-1993 Laboratory Standard

Covers entire laboratory ventilation system.

•Vertical stack discharge @ 2000-3000 fpm

•New and remodeled hoods shall have a monitoring device

•Ductless hoods should only be used with non-hazardous materials

•Fume hood face velocities between 80 – 120 fpm

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