54
Product Service 1-800-522-765
ppendix D: Re
erences
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
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
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
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
• Materials of construction should have flame spread of 25 or less
• 80 to 120 fpm to prevent escape
NFPA 30 – 2000 Flammable and Combustible Liquids Code
• Approved cabinets may be metal or wood
• Vent location on cabinets are required
• Venting of cabinets not a requirement
To Next Page