User guide

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Appendix D: References
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
[phone]
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
[phone]
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
[phone]
NFPA 45 – 2002 Fire Protection for Laboratories Using
Chemicals
• Laboratory hoods should not be relied on for explosion
protection
• Exhaust air from fume hoods should not be recirculated
• Services should be external to the hood
• Canopy hoods only for non-hazardous applications