Labconco Protector XL Floor-Mounted (Walk-In) Laboratory Fume Hoods 1128 Series - Manuel (Page 67)

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Original instructions
A
PPENDIX
E
R
EFERENCES
Many excellent reference texts and booklets are currently available. The
following is a brief listing:
Laboratory Ventilation Standards
Federal Register 29 CFR Part 1910
Non-mandatory recommendations from “Prudent Practices”.

Fume hoods should have a continuous monitoring device

Face velocities should be between 60-100 linear feet per minute (lfpm)

Average 2.5 linear feet of hood space per person
Occupational Health and Safety
U.S. Department of Labor
200 Constitution Avenue N.W.
Washington, DC 20210
(202) 523-1452
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
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