FumeHoodTesting-ASHRAE110.pdf

ASHRAE 110
An Introduction to Laboratory Fume Hood Performance Testing
Topics of Discussion
ƒ What is a Fume Hood?
ƒ Why do we Test Fume Hoods?
ƒ Brief History of ASHRAE 110
ƒ ASHRAE 110: Face Velocity Testing
ƒ ASHRAE 110: Smoke Visualization
ƒ ASHRAE 110: Tracer Gas Containment
ƒ ASHRAE 110: Test Types
ƒ The Proposed Latest Edition of ASHRAE 110
ƒ Other Fume Hood Performance Tests
What is a Fume Hood?
A Laboratory Fume Hood is a
safety device where
hazardous chemicals can be
handled safely while fumes
and vapors generated by
these chemicals are
exhausted out of the building,
when connected to a properly
designed laboratory
ventilation system.
What is a Fume Hood?
Speed of the
Air is Face
Velocity
What is a Fume Hood?
Above all else, laboratory
fume hoods are
SAFETY DEVICES.
Why Test Fume Hoods?
ƒ A method of evaluating the fume hood’s ability to
contain and exhaust fumes under a set a standard
conditions.
ƒ A means for parative analysis of fume hoods.
ƒ A tool for fume hood manufacturers to use in the
design and research & development of fume hoods.
ƒ A criteria for fume hood procurement.
ƒ A method mission and certify fume hood
installations.
ƒ A forensic tool to help identify issues/problems with
an installed laboratory fume hood HVAC system.
Why Test Fume Hoods?
What Fume Hood Performance
Testing is NOT:
ƒ As of today, there is no performance test
that directly correlates the results of the
fume hood performance test with the
safety afforded to a fume hood operator.
The variables in hood environment
(including cross drafts, temperature and
pressure fluctuations, activity and traffic
in the lab space, hood location, system
design), use practices, materials in the
hood and hood loading, prevent a direct
correlation.
Brief History of ASHRAE 110
ƒ Evolved from a research paper by K. J. Caplan and G.
W. Knutson, “Laboratory Fume Hoods, A Pe