Laboratory Grade Casework

Laboratory Grade Casework
Presenters:
Mike Patton – Kewaunee Scientific
Wayne Cathey - CampbellRhea
What is the Scientific Equipment Furniture
Association?
„
Voluntary International Trade Association
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North American Driven, International in Scope
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Members include Manufacturers, Fabricators, Planners,
Architects, Designers, Engineers, General Contractors,
Dealers, and Installers
Performance Based Recommended Practices
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What is SEFA 8?
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„
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Performance based tool for evaluating Laboratory
Casework for safety, durability, and structural integrity
Five types of casework: Wood, Metal, Plastic Laminate,
Polypropylene, and Phenolic Resin
Development of Recommended practices is a perpetual
process
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Why the need for testing?
Kitchen cabinets, office furniture and millwork are
tested, but don’t have to meet the rigorous demands
of the laboratory environment:
• Chemical abuse
• Physical abuse
• Wet conditions
• Lack of maintenance
A higher standard is required to meet
and exceed end-user expectations.
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What is tested?
„
Cabinet
Total load test
Concentrated load
Torsion
Submersion test
„
Drawer
Static test
Impact test
Internal rolling test
Slide cycle test
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What else is tested?
„
Door
• Impact test
• Cycle test
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Table
• Static load
• Racking Test
„
Wall Cabinet Load
„
Shelf load test
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Chemical spot test
Lets view them individually
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Cabinet Load Test
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Demonstrates the
structural integrity
Establishes load
bearing capabilities
of the cabinet with
a 2000 lb static
load.
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Concentrated Load
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Demonstrates the
functional characteristics
of the cabinet when
subjected to a concentrated
load of 200 lb to the top
center of the cabinet.
The doors and drawers
must still function.
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Cabinet Torsion
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Evaluates the
structural integrity
of the cabinet
construction.
Subject cabinet to a
200 lb torsion load.
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Submersion Test
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„
This test demonstrates
the ability of a cabinet to
resist standing water.
Cabinet is set 2” of
standing water for four
hours.
Any change in material
thickness is measured.
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Door Cycle Test
„
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Demonstrate the
durability of the door
hinge hardware.
Door is open and
closed for 100,000
cycles.
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Cabinet Door Hinge Test
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Demonstrates the
strength of the door
hinge.
Load of 200 lbs.
applied to center line
of door.
Door is slowly
moved full cycle of
hinge, without
distortion.
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Drawer Static Test
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Demonstrates the
ability to support a
point load positioned
at the front of the
drawer and challenges
the attachment of the
drawer head to the
drawer.
Static 150 lb load is
attached to the center
of an open drawer.
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Drawer Impact Test
„
„
Demonstrate the
resistance to impact
of the drawer bottom
and slide mechanism.
A 10 pound weight is
dropped from 24”
into the bottom of
the drawer.
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Drawer Internal Rolling Impact
„
„
Evaluate the strength
of the drawer head,
bottom, and back as a
result of opening and
closing the drawer
with a rolling load.
A 10 lb load is rolled
inside the drawer
while it is tilted at a
45 degree angle.
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Drawer Cycle Test
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Test is designed to
replicate years of drawer
cycles under full load.
Drawer is opened and
closed for 50,000 cycles.
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Table Static Load
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Table components are
subjected to loads normal
for laboratory use:
300 lbs for mobile
„ 600 lbs for free standing
„ 2,000 lbs for fixed tables
„
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Table Racking Test
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Demonstrates the
structural integrity of
table construction
when subjected to a
racking load.
Table is tilted 45° for
thirty minutes.
250 lbs. added to
table top for 72
hours
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Wall Cabinet Load Test
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„
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Demonstrate the strength of the back of the wall
cabinet as well as the joinery of the cabinet and
function of the doors
when subjected to loads
normally expected for
laboratory furniture.
Cabinet bottom, each
shelf and top are
uniformly loaded with
40 lbs. per square foot.
Doors should open and close normally.
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Shelf Load Test
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Demonstrate the ability
of a shelf and mounting
hardware to support
normal laboratory loads.
Shelf loaded to 40 lbs
per square foot.
Maximum load: 200 lbs
11/32” maximum
deflection
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Chemical Testing
A wide range of volatile and
non-volatile chemicals are
tested.
From Amyl Acetate to Zinc
Chloride; Sulfuric, Nitric and
Phosphoric acids in a variety
of strengths; Benzene,
Acetone, Iodine; even the
effects of Phenol,
Toluene and
Gasoline are
tested on the
finished surface.
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How do you benefit from these tests?
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These standards establish a known
level of quality and reliability designed
with the laboratory in mind.
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These tests establish results that meet
or exceed standards established by:
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ANSI – American National Standards Institute
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BHMA – Builder Hardware Manufacturers Association
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ICC – International Code Council
(formerly BOCA – Building Officials & Code Administrators)
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BIFMA – Business & Industrial Furniture Manufacturer’s
Association
AWS – Architectural Woodwork Standards
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In Summary
SEFA 8 is the
only existing
international
standard designed
to specifically insure
the quality and
performance of
laboratory casework.
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In Summary
Complying with SEFA 8 assures you that
the manufacturer is capable of performing
Laboratory
quality
installations &
supporting an
authentic
product warranty
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