Labconco Class I Enclosure Models 3980423 User Manual
Page 75
Appendix E: References
Product Service 1-800-522-7658
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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.
24
th
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
American Industrial Hygiene Association
2700 Prosperity Avenue, Suite 250
Fairfax, VA 22031
(703) 849-8888
www.aiha.org
SEFA 1-2002
Fume hood face velocities based on toxicity levels of chemicals
Class A – 125 to 150 fpm
Class B – 80 to100 fpm
Class C – 75-to 80 fpm
Test method – face velocity profile and smoke generation
Scientific Equipment & Furniture Association
1028 Duchess Drive
McLean, VA 22102
(703) 538-6007
www.sefalabs.com