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SECTION 11 53 13
LABORATORY FUME HOODS
 
 
Copyright 2003 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** HEMCO Corporation; laboratory fume hoods.
This section is based on the products of HEMCO Corporation, which is located at:
711 S. Powell Rd.
Independence, MO 64056
Toll Free Tel: 800-779-4362
Tel: 816-796-2900
Fax: 816-796-3333
Email: request info (sales@hemcocorp.com)
Web: www.hemcocorp.com
[ Click Here ] for additional information.
HEMCO is the leading manufacturer of innovative laboratory equipment serving the Sciences and R&D Technology Industries since 1958. Located in Independence, Missouri, the heart of America, and the crossroads of North America a major center for transportation, communication, distribution, and manufacturing industries worldwide.
HEMCO's modern manufacturing and distribution facilities combined with our many years of experience uniquely qualifies us to provide laboratory planning solutions. Our extensive engineering, design and manufacturing expertise can transform your laboratory ideas into reality.
HEMCO offers a complete line of UniFlow laboratory fume hoods. Bench-mounted hoods in widths from 24" to 96". Floor-mounted (walk-in) hoods from 48" to 144" wide and up to 96" deep. UniFlow fume hoods are designed for performance, user protection, & save 50% on reduced energy cost.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Laboratory fume hoods, including the following types:
1.
SE AireStream Series.
2.
LE Series.
3.
CE Series.
4.
SE FM Series.
5.
LE FM Series.
B.
Fume hood services and accessories.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section - .
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
B.
ANSI/AIHA Z9.5-2012 - Standard on Ventilation for Laboratories.
C.
ANSI Z21.15 - Manually Operated Gas Valves for Appliances, Appliance Connector Valves and Hose End Valves.
D.
ASHRAE 110-1995 - Method of Testing the Performance of Laboratory Fume Hoods.
E.
CAL/OSHA 5154.1 - Ventilation Requirements for Laboratory-Type Hood Operations.
F.
CSA-22.2 - Canadian Standard for Wire/Cable Requirements and Use.
G.
ISO 9001-2008 - Certified Company.
H.
OSHA 29-CFR-1910 - Occupational Safety and Health Standards.
I.
NFPA-45 - Standard on Fire Protection for Laboratories.
J.
SEFA 1-2003 - Recommended Practices for Laboratory Fume Hoods.
K.
UL 1805 - Standard for Laboratory Fume Hoods and Cabinets.
L.
UL 3101 - Electrical Equipment for Laboratory Use.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Shop Drawings: Include plans, elevations, sections and service run spaces.
1.
Service fittings, as related to the fume hood, shall illustrate location and type when required.
2.
Mechanical and electrical services, as related to the fume hood, shall be illustrated where required.
3.
Face opening, air volume and static pressure data of each fume hood shall be clearly noted in drawings or separate documentation.
D.
Submit manufacturer's test data and installation instructions for each type of fume hood. Provide data indicating compliance with UL 1805, ASHRAE 110-95 Standards and ISO 9001-2008.
E.
Verification Samples:
 
** NOTE TO SPECIFIER ** Delete samples not required.
 
1.
Interior fume hood liner material, 6 x 6 inch section.
2.
Countertops with dished formation, 6 x 6 inch section.
3.
Color samples of manufacturer's finish.
4.
Hardware and accessories including sample sash handle and/or pulls, cables, and pulleys.
1.5
QUALITY ASSURANCE
A.
Sourcing: Laboratory fume hoods shall be the product of a single manufacturer.
B.
Manufacturer Qualifications: Minimum 5 years experience manufacturing similar products.
1.
Laboratory Fume Hoods manufactured and assembled entirely in the USA.
2.
ISO 9001-2008 Certified Company.
3.
Manufacturer must maintain a fume hood examination lab at plant location with ability to conduct ANSI/ASHRAE 110 testing.
C.
Installer Qualifications: Minimum 2 years experience installing similar products.
 
** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
 
D.
Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until workmanship is approved by Architect.
3.
Rework mock-up area as required to produce acceptable work.
1.6
DELIVERY, STORAGE, AND HANDLING
A.
Deliver and store products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Inspect crate for damage and possible concealed damage that may have occurred in transit.
C.
Handling: Handle materials to avoid damage.
1.7
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.8
SEQUENCING
A.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
1.9
WARRANTY
A.
Warranty: Manufacturer's 5 year limited warranty. The manufacturer shall repair or replace any portion of the fume hood, under normal use, if examination discloses it to have been defective within the warranty period.
PART 2 GENERAL
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: HEMCO Corporation, which is located at: 711 S. Powell Rd.; Independence, MO 64056; Toll Free Tel: 800-779-4362; Tel: 816-796-2900; Fax: 816-796-3333; Email: request info (sales@hemcocorp.com); Web: www.hemcocorp.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.2
SE AIRESTREAM SERIES FUME HOODS
A.
Basis of Design: UniFlow SE AireStream Series by HEMCO Corporation.
B.
Components:
1.
Face Opening: Molded aerodynamic opening with upper and lower airfoils to minimize air flow turbulence and provide a constant volume of air flow.
2.
Baffle System: VaraFlow design with Vector slots:
a.
Material: HiPel composite resin.
b.
Fume hood shall effectively maintain safe, constant exhaust volume at any baffle position.
c.
Constructed of upper, middle, and lower sections.
d.
Positioned such that horizontal and vertical edge slots effectively create near laminar air flow through the fume chamber.
e.
Factory set such that the fume hood is at its optimum performance level.
f.
Lower Baffle: Staggered slotted array.
g.
Rounded edges to raw fumes smoothly through baffle system.
h.
Removable for cleaning.
3.
Exhaust Collar: Integral, bell shaped.
a.
Standard 12 inch round collars.
b.
Same HiPel material as hood structure.
c.
Chemically bonded to the fume chamber ceiling.
4.
Component Fume Chamber: One piece, molded.
 
** NOTE TO SPECIFIER ** Select liner material. HiPel is standard. Delete liner options not required.
 
a.
Liner: Non-conducting white HiPel, 3/16 inch nominal thickness. Molded one piece seamless with coved corners.
1)
Chemical resistant.
2)
Flame resistant. Meets UL 1805 and NFPA 45.
b.
Liner: 304 Stainless Steel, 16 ga, #4 finish.
c.
Liner: 316 Stainless Steel, 16 ga, #4 finish.
d.
Liner: PVC sheet, 1/4 inch nominal thickness.
e.
Liner: Polypropylene, white, 1/4 inch nominal thickness.
f.
Coved Corners.
g.
Smooth finish for ease of cleaning.
h.
Interior Vertical Clearance: 52 inches nominal.
5.
Constant Air Volume (CAV) Model: Automatic air bypass to provide a constant air volume.
a.
When the sash is closed, upper bypass and lower bypass is drawing 100 percent of the supply air.
b.
As the sash is raised, the upper bypass begins to close and is completely closed when the sash reaches the full open position.
6.
Variable Air Volume (VAV) Model: Restricted air bypass:
a.
With a design face velocity set, the air volume changes as the sash is raised or lowered.
b.
A minimum flow of 25 CFM per square foot of surface is recommended by the NFPA when the sash is closed.
7.
Superstructure and Mold Liner Material: Unitized composite construction for total chemical resistance, strength, durability and reduced weight:
a.
Material: HiPel, white thermosetting resin surface layers with fiberglass reinforced composite core, 3/16 inch thick.
b.
Side Walls: 5 inches wide, chemically bonded to liner.
c.
Materials are tested and classified by U.L. for Class A fire resistant, non-metallic materials used in laboratories.
8.
Fascia Posts: Aerodynamically angled to provide uniform air flow in the fume chamber. Continuation of the one piece HiPel liner.
9.
Removable Front Panel: Located above the sash allows access to electrical connections, light bulb change out, sash weights and duct connections.
10.
Exterior Side Panels: Unitized and chemically bonded to form homogeneous one piece superstructure. HiPel resin.
11.
Air Foil:
a.
Material: HiPel composite resin, non-conducting.
b.
Smooth color finish.
1)
Color: _____.
c.
Air foil across lower sash to provide clean sweep of air over work surface.
d.
One inch air bypass inlet under air foil to insure uniform air flow at face and to sweep heavier than air vapors off work surface.
e.
Upper airfoil provides clean flow of air in upper area of the fume chamber to minimize turbulent air flow through the fume chamber.
12.
Sash: Picture frame sash:
 
** NOTE TO SPECIFIER ** Select glazing option. Tempered Safety Glass is standard. Delete glazing options not required.
 
a.
Glazing: Clear tempered safety glass.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
1)
Extended View Panel: Extended sash height allowing full visual display of fume hood interior.
b.
Glazing: Clear laminated safety glass.
c.
Glazing: Clear polycarbonate.
 
** NOTE TO SPECIFIER ** Select sash assembly. Delete assembly options not required.
 
13.
Sash Assembly: Full view, vertical rising.
a.
Frame, Track, and Pull: Chemical resistant PVC.
b.
Counterbalance System: PVC coated, 1/8 inch diameter stainless steel aircraft cable with attached single sash counter weight.
1)
Cable Pulley System: 2 inch diameter nylon ball bearing.
c.
Full width finger sash pull.
d.
Lifting force of no more than 5 pounds.
1)
Sash cable runs through bottom of sash to prevent.
e.
Adjustable turnbuckle for leveling counterweight/sash.
14.
Sash Assembly: Combination Sash.
a.
Vertical viewing with horizontal sliding doors.
b.
Sliding panels constructed of clear tempered safety glass set into a stainless steel frame.
c.
Allows for both horizontal and vertical movement options to the end user.
d.
Counterbalance System: Two PVC coated, 1/8 inch diameter stainless steel aircraft cable with attached single sash counter weight.
1)
Cable Pulley System: 2 inch diameter nylon ball bearing.
e.
Lifting force of no more than 5 pounds.
1)
Sash cable runs through bottom of sash to prevent.
f.
Adjustable turnbuckle for leveling counterweight/sash.
15.
Sash Assembly: Horizontal Sliding Sash.
a.
Anodized aluminum top rail and bottom track.
b.
Bottom supported.
c.
Sliding panels shall be framed with anodized aluminum frame on top and a bottom supported aluminum rolling frame.
d.
Standard clear tempered safety glass panels set into an aluminum track.
e.
Housed within the stainless steel rail.
16.
Illumination of Work Area: Area inside the superstructure from side to side, from face of baffle to inside face of sash, and from working surface to a height of 52 inches.
a.
Minimum Illumination: 80 foot candles.
b.
Fixtures: 2 tube LED fixture:
 
** NOTE TO SPECIFIER ** Select fixture size. Delete fixture sizes not required.
 
1)
48 inch hood: 24 inch.
2)
60 inch hood: 36 inch.
3)
72 inch hood: 48 inch.
4)
96 inch hood: (2) 36 inch.
5)
UL and CSA listed.
6)
Mounted fixture with removable stainless steel light bracket with mirrored finish.
7)
Clear tempered safety glass panel provides vapor-tight barrier and seal to separate the fixture from the hood interior.
 
** NOTE TO SPECIFIER ** Explosion-proof fixtures are optional. Delete options not required.
 
8)
Explosion-proof fixture: Class I Division II.
9)
Explosion-proof fixture: Class I Division I.
C.
Materials:
1.
HiPel Composite: Two white surfaces chemically bonded to a fiberglass reinforced core layer of thermosetting resin. No exposed fiberglass.
a.
Nominal Thickness: 4.5 mm.
b.
Meets or exceeds NFPA 45.
 
** NOTE TO SPECIFIER ** Select glazing option. Delete glazing options not required.
 
2.
Sash Glass: 3/16 inch clear Tempered Safety Glass per ASTM C 1048.
3.
Sash Glass: 1/4 inch clear Laminated Safety Glass per ASTM C 1172.
4.
Sash Glass: 3/16 inch clear Polycarbonate Safety Glass.
5.
Sash Glass: 1/4 inch clear Polycarbonate Safety Glass.
D.
Fasteners:
1.
Interior Surfaces: PVC-capped #8 pan stainless steel screws and nylon bolts.
2.
Exterior Structural Members: #8 pan stainless steel screws and nylon bolts.
E.
Work Surfaces:
 
** NOTE TO SPECIFIER ** Select work surface option. Delete options not required.
 
1.
Epoxy Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Black.
2.
Phenolic Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Charcoal.
3.
316 Stainless Steel: 6 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
4.
304 Stainless Steel: 16 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
F.
Base Cabinets and Tables:
 
** NOTE TO SPECIFIER ** Select base option required. Delete options not required.
 
1.
Base Cabinet: Constructed of furniture grade steel. With adjustable shelf and levelers.
2.
Acid Cabinet: Interior lined with one-piece acid resistant white composite resin liner with all covered corners for superior corrosion resistance. With vents and fixed shelf.
3.
Flammable Cabinet: Provides safe storage of flammables. Constructed of welded double wall furniture grade steel. With adjustable shelf and locking hinged doors. Meets NFPA codes.
4.
Fume Hood Base Table: Heavy duty, all welded 2 inch square tube steel construction. Each leg has levelers with fitted black boots.
 
** NOTE TO SPECIFIER ** Delete height not required.
 
a.
Bench Height: 35 inches.
b.
Sitting Height: 28 inches.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.3
LE SERIES FUME HOODS
A.
Basis of Design: UniFlow LE Series by HEMCO Corporation.
B.
Components:
1.
Face Opening: Molded aerodynamic opening with upper and lower airfoils to minimize air flow turbulence and provide a constant volume of air flow.
2.
Baffle System: VaraFlow design with Vector slots:
a.
Material: HiPel composite resin.
b.
Fume hood shall effectively maintain safe, constant exhaust volume at any baffle position.
c.
Constructed of upper, middle, and lower sections.
d.
Positioned such that horizontal and vertical edge slots effectively create near laminar air flow through the fume chamber.
e.
Factory set such that the fume hood is at its optimum performance level.
f.
Lower Baffle: Staggered slotted array.
g.
Rounded edges to raw fumes smoothly through baffle system.
h.
Removable for cleaning.
3.
Exhaust Collar: Integral, bell shaped.
a.
Standard round collars.
b.
Same HiPel material as hood structure.
c.
Chemically bonded to the fume chamber ceiling.
 
** NOTE TO SPECIFIER ** Delete collar sizes not required.
 
d.
36 inch hood: 1-8 inch diameter.
e.
48 inch hood: 1-10 inch diameter.
f.
60 inch hood: 1-10 inch diameter.
g.
72 inch hood: 1-12 inch diameter.
h.
96 inch hood: 2-10 inch diameter.
4.
Component Fume Chamber: One piece, molded.
 
** NOTE TO SPECIFIER ** Select liner material. HiPel is standard. Delete liner options not required.
 
a.
Liner: Non-conducting white HiPel, 3/16 inch nominal thickness. Molded one piece seamless with coved corners.
1)
Chemical resistant.
2)
Flame resistant. Meets UL 1805 and NFPA 45.
b.
Liner: 304 Stainless Steel, 16 ga, #4 finish.
c.
Liner: 316 Stainless Steel, 16 ga, #4 finish.
d.
Liner: PVC sheet, 1/4 inch nominal thickness.
e.
Liner: Polypropylene, white, 1/4 inch nominal thickness.
f.
Coved Corners.
g.
Smooth finish for ease of cleaning.
h.
Interior Vertical Clearance: 44 inches nominal.
5.
Constant Air Volume (CAV) Model: Automatic air bypass to provide a constant air volume.
a.
When the sash is closed, upper bypass and lower bypass is drawing 100 percent of the supply air.
b.
As the sash is raised, the upper bypass begins to close and is completely closed when the sash reaches the full open position.
6.
Variable Air Volume (VAV) Model: Restricted air bypass:
a.
With a design face velocity set, the air volume changes as the sash is raised or lowered.
b.
A minimum flow of 25 CFM per square foot of surface is recommended by the NFPA when the sash is closed.
7.
Superstructure and Mold Liner Material: Unitized composite construction for total chemical resistance, strength, durability and reduced weight:
a.
Material: HiPel, white thermosetting resin surface layers with fiberglass reinforced composite core, 3/16 inch thick.
b.
Side Walls: 5 inches wide, chemically bonded to liner.
c.
Materials are tested and classified by U.L. for Class A fire resistant, non-metallic materials used in laboratories.
8.
Fascia Posts: Aerodynamically angled to provide uniform air flow in the fume chamber. Continuation of the one piece HiPel liner.
9.
Removable Front Panel: Located above the sash allows access to electrical connections, light bulb change out, sash weights and duct connections.
10.
Exterior Side Panels: Unitized and chemically bonded to form homogeneous one piece superstructure. HiPel resin.
11.
Air Foil:
a.
Material: HiPel composite resin, non-conducting.
b.
Smooth color finish.
1)
Color: _____.
c.
Air foil across lower sash to provide clean sweep of air over work surface.
d.
One inch air bypass inlet under air foil to insure uniform air flow at face and to sweep heavier than air vapors off work surface.
e.
Upper airfoil provides clean flow of air in upper area of the fume chamber to minimize turbulent air flow through the fume chamber.
12.
Sash: Picture frame sash:
 
** NOTE TO SPECIFIER ** Select glazing option. Tempered Safety Glass is standard. Delete glazing options not required.
 
a.
Glazing: Clear tempered safety glass.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
1)
Extended View Panel: Extended sash height allowing full visual display of fume hood interior.
b.
Glazing: Clear laminated safety glass.
c.
Glazing: Clear polycarbonate.
 
** NOTE TO SPECIFIER ** Select sash assembly. Delete assembly options not required.
 
13.
Sash Assembly: Full view, vertical rising.
a.
Frame, Track, and Pull: Chemical resistant PVC.
b.
Counterbalance System: PVC coated, 1/8 inch diameter stainless steel aircraft cable with attached single sash counter weight.
1)
Cable Pulley System: 2 inch diameter nylon ball bearing.
c.
Full width finger sash pull.
d.
Lifting force of no more than 5 pounds.
1)
Sash cable runs through bottom of sash to prevent.
e.
Adjustable turnbuckle for leveling counterweight/sash.
14.
Sash Assembly: Combination Sash.
a.
Vertical viewing with horizontal sliding doors.
b.
Sliding panels constructed of clear tempered safety glass set into a stainless steel frame.
c.
Allows for both horizontal and vertical movement options to the end user.
d.
Counterbalance System: Two PVC coated, 1/8 inch diameter stainless steel aircraft cable with attached single sash counter weight.
1)
Cable Pulley System: 2 inch diameter nylon ball bearing.
e.
Lifting force of no more than 5 pounds.
1)
Sash cable runs through bottom of sash to prevent.
f.
Adjustable turnbuckle for leveling counterweight/sash.
15.
Sash Assembly: Horizontal Sliding Sash.
a.
Anodized aluminum top rail and bottom track.
b.
Bottom supported.
c.
Sliding panels shall be framed with anodized aluminum frame on top and a bottom supported aluminum rolling frame.
d.
Standard clear tempered safety glass panels set into an aluminum track.
e.
Housed within the stainless steel rail.
16.
Illumination of Work Area: Area inside the superstructure from side to side, from face of baffle to inside face of sash, and from working surface to a height of 35 inches.
a.
Minimum Illumination: 80 foot candles.
b.
Fixtures: 2 tube LED fixture:
 
** NOTE TO SPECIFIER ** Select fixture size. Delete fixture sizes not required.
 
1)
36 inch hood: 24 inch.
2)
48 inch hood: 24 inch.
3)
60 inch hood: 36 inch.
4)
72 inch hood: 48 inch.
5)
96 inch hood: (2) 36 inch.
6)
UL and CSA listed.
7)
Mounted fixture with removable stainless steel light bracket with mirrored finish.
8)
Clear tempered safety glass panel provides vapor-tight barrier and seal to separate the fixture from the hood interior.
 
** NOTE TO SPECIFIER ** Explosion-proof fixtures are optional. Delete options not required.
 
9)
Explosion-proof fixture: Class I Division II.
10)
Explosion-proof fixture: Class I Division I.
C.
Materials:
1.
HiPel Composite: Two white surfaces chemically bonded to a fiberglass reinforced core layer of thermosetting resin. No exposed fiberglass.
a.
Nominal Thickness: 4.5 mm.
b.
Meets or exceeds NFPA 45.
 
** NOTE TO SPECIFIER ** Select glazing option. Delete glazing options not required.
 
2.
Sash Glass: 3/16 inch clear Tempered Safety Glass per ASTM C 1048.
3.
Sash Glass: 1/4 inch clear Laminated Safety Glass per ASTM C 1172.
4.
Sash Glass: 3/16 inch clear Polycarbonate Safety Glass.
5.
Sash Glass: 1/4 inch clear Polycarbonate Safety Glass.
D.
Fasteners:
1.
Interior Surfaces: PVC-capped #8 pan stainless steel screws and nylon bolts.
2.
Exterior Structural Members: #8 pan stainless steel screws and nylon bolts.
E.
Work Surfaces:
 
** NOTE TO SPECIFIER ** Select work surface option. Delete options not required.
 
1.
Epoxy Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Black.
2.
Phenolic Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Charcoal.
3.
316 Stainless Steel: 6 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
4.
304 Stainless Steel: 16 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
F.
Base Cabinets and Tables:
 
** NOTE TO SPECIFIER ** Select base option required. Delete options not required.
 
1.
Base Cabinet: Constructed of furniture grade steel. With adjustable shelf and levelers.
2.
Acid Cabinet: Interior lined with one-piece acid resistant white composite resin liner with all covered corners for superior corrosion resistance. With vents and fixed shelf.
3.
Flammable Cabinet: Provides safe storage of flammables. Constructed of welded double wall furniture grade steel. With adjustable shelf and locking hinged doors. Meets NFPA codes.
4.
Fume Hood Base Table: Heavy duty, all welded 2 inch square tube steel construction. Each leg has levelers with fitted black boots.
 
** NOTE TO SPECIFIER ** Delete height not required.
 
a.
Bench Height: 35 inches.
b.
Sitting Height: 28 inches.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.4
CE SERIES FUME HOODS
A.
Basis of Design: UniFlow CE Series by HEMCO Corporation.
B.
Components:
1.
Face Opening: Molded aerodynamic opening with upper and lower airfoils to minimize air flow turbulence and provide a constant volume of air flow.
2.
Baffle System: VaraFlow design with Vector slots:
a.
Material: HiPel composite resin.
b.
Fume hood shall effectively maintain safe, constant exhaust volume at any baffle position.
c.
Constructed of upper, middle, and lower sections.
d.
Positioned such that horizontal and vertical edge slots effectively create near laminar air flow through the fume chamber.
e.
Factory set such that the fume hood is at its optimum performance level.
f.
Lower Baffle: Staggered slotted array.
g.
Rounded edges to raw fumes smoothly through baffle system.
h.
Removable for cleaning.
3.
Exhaust Collar: Integral, bell shaped.
a.
Standard round collars.
b.
Same HiPel material as hood structure.
c.
Chemically bonded to the fume chamber ceiling.
 
** NOTE TO SPECIFIER ** Delete collar sizes not required.
 
d.
30 inch hood: 1-6 inch diameter.
e.
36 inch hood: 1-6 inch diameter.
f.
48 inch hood: 1-8 inch diameter.
g.
72 inch hood: 1-10 inch diameter.
4.
Component Fume Chamber: One piece, molded.
 
** NOTE TO SPECIFIER ** Select liner material. HiPel is standard. Delete liner options not required.
 
a.
Liner: Non-conducting white HiPel, 3/16 inch nominal thickness. Molded one piece seamless with coved corners.
1)
Chemical resistant.
2)
Flame resistant. Meets UL 1805 and NFPA 45.
b.
Smooth finish for ease of cleaning.
c.
Interior Vertical Clearance: 35 inches nominal.
5.
Air Bypass: Automatic air bypass to provide a constant air volume.
a.
When the sash is closed, upper bypass and lower bypass is drawing 100 percent of the supply air.
b.
As the sash is raised, the upper bypass begins to close and is completely closed when the sash reaches the full open position.
6.
Superstructure and Mold Liner Material: Unitized composite construction for total chemical resistance, strength, durability and reduced weight:
a.
Material: HiPel, white thermosetting resin surface layers with fiberglass reinforced composite core, 3/16 inch thick.
b.
Side Walls: 5 inches wide, chemically bonded to liner.
c.
Materials are tested and classified by U.L. for Class A fire resistant, non-metallic materials used in laboratories.
7.
Fascia Posts: Aerodynamically angled to provide uniform air flow in the fume chamber. Continuation of the one piece HiPel liner.
8.
Removable Front Panel: Located above the sash allows access to electrical connections, light bulb change out, sash weights and duct connections.
9.
Exterior Side Panels: Unitized and chemically bonded to form homogeneous one piece superstructure. HiPel resin.
10.
Air Foil:
a.
Material: HiPel composite resin, non-conducting.
b.
Smooth color finish.
1)
Color: _____.
c.
Air foil across lower sash to provide clean sweep of air over work surface.
d.
One inch air bypass inlet under air foil to insure uniform air flow at face and to sweep heavier than air vapors off work surface.
e.
Upper airfoil provides clean flow of air in upper area of the fume chamber to minimize turbulent air flow through the fume chamber.
11.
Sash: Full view, vertical raising, picture frame sash:
 
** NOTE TO SPECIFIER ** Select glazing option. Clear tempered safety glass is standard. Delete glazing options not required.
 
a.
Glazing: Clear tempered safety glass.
b.
Glazing: Clear laminated safety glass.
c.
Glazing: Clear polycarbonate.
d.
Frame, Track, and Pull: Chemical resistant PVC.
e.
Counterbalance System: PVC coated, 1/8 inch diameter stainless steel aircraft cable with two sash counter weights.
1)
Cable Pulley System: 1-3/4 inch diameter black delrin pulley wheel.
f.
Full width finger sash pull.
g.
Lifting force of no more than 5 pounds.
h.
Sash cable runs through bottom of sash to prevent sash from dropping.
i.
Adjustable counterweight for tilting adjustment.
12.
Illumination of Work Area: Area inside the superstructure from side to side, from face of baffle to inside face of sash, and from working surface to a height of 35 inches.
a.
Minimum Illumination: 80 foot candles.
b.
Fixtures: Vapor proof threaded bulb 100 watt fixture:
1)
UL and CSA listed.
2)
Clear glass threaded globe accessed from inside the fume chamber for bulb change out.
 
** NOTE TO SPECIFIER ** Explosion-proof fixtures are optional. Delete options not required.
 
3)
Explosion-proof fixture: Class I Division II.
4)
Explosion-proof fixture: Class I Division I.
C.
Materials:
1.
HiPel Composite: Two white surfaces chemically bonded to a fiberglass reinforced core layer of thermosetting resin. No exposed fiberglass.
a.
Nominal Thickness: 4.5 mm.
b.
Meets or exceeds NFPA 45.
 
** NOTE TO SPECIFIER ** Select glazing option. Tempered Safety Glass is standard. Delete glazing options not required.
 
2.
Sash Glass: 3/16 inch clear Tempered Safety Glass per ASTM C 1048.
3.
Sash Glass: 1/4 inch clear Laminated Safety Glass per ASTM C 1172.
4.
Sash Glass: 3/16 inch clear Polycarbonate Safety Glass.
5.
Sash Glass: 1/4 inch clear Polycarbonate Safety Glass.
D.
Fasteners:
1.
Interior Surfaces: PVC-capped #8 pan stainless steel screws and nylon bolts.
2.
Exterior Structural Members: #8 pan stainless steel screws and nylon bolts.
E.
Work Surfaces:
 
** NOTE TO SPECIFIER ** Select work surface option. Delete options not required.
 
1.
Composite Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Gray.
2.
Epoxy Resin: 1 inch thick, flat, not dished. Black.
3.
Phenolic Resin: 1 inch thick flat, not dished. Black.
4.
304 Stainless Steel: 16 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
F.
Base Cabinets and Tables:
 
** NOTE TO SPECIFIER ** Select base option required. Delete options not required.
 
1.
Base Cabinet: Constructed of furniture grade steel. With adjustable shelf and levelers.
2.
Acid Cabinet: Interior lined with one-piece acid resistant white composite resin liner with all covered corners for superior corrosion resistance. With vents and fixed shelf.
3.
Flammable Cabinet: Provides safe storage of flammables. Constructed of welded double wall furniture grade steel. With adjustable shelf and locking hinged doors. Meets NFPA codes.
4.
Fume Hood Base Table: Heavy duty, all welded 2 inch square tube steel construction. Each leg has levelers with fitted black boots.
 
** NOTE TO SPECIFIER ** Delete height not required.
 
a.
Bench Height: 35 inches.
b.
Sitting Height: 28 inches.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.5
SE FM FLOOR MOUNT FUME HOODS
A.
Basis of Design: UniFlow SE FM Floor Mount (Walk-In) Series by HEMCO Corporation.
B.
Components:
1.
Face Opening: Molded aerodynamic opening with upper and lower airfoils to minimize air flow turbulence and provide a constant volume of air flow.
2.
Baffle System: VaraFlow design with Vector slots:
a.
Material: HiPel composite resin.
b.
Fume hood shall effectively maintain safe, constant exhaust volume at any baffle position.
c.
Constructed of upper, middle, and lower sections.
d.
Positioned such that horizontal and vertical edge slots effectively create near laminar air flow through the fume chamber.
e.
Factory set such that the fume hood is at its optimum performance level.
f.
Lower Baffle: Staggered slotted array.
g.
Rounded edges to raw fumes smoothly through baffle system.
h.
Removable for cleaning.
3.
Exhaust Collar: Integral, bell shaped.
a.
Standard 12 inch round collars.
b.
Same HiPel material as hood structure.
c.
Chemically bonded to the fume chamber ceiling.
4.
Component Fume Chamber: One piece, molded.
a.
Liner: Non-conducting white HiPel, 3/16 inch nominal thickness. Constructed with a modular design allowing hood to be assembled in the field.
1)
Chemical resistant.
2)
Flame resistant. Meets UL 1805 and NFPA 45.
b.
Smooth finish for ease of cleaning.
c.
Interior Vertical Clearance: 82 inches nominal.
5.
Constant Air Volume (CAV) Model: Automatic air bypass to provide a constant air volume.
a.
When the sashes are closed, upper bypass and lower bypass is drawing 100 percent of the supply air.
b.
As the upper sash is raised, the upper bypass begins to close and is completely closed when the sash reaches the full open position.
6.
Variable Air Volume (VAV) Model: Restricted air bypass:
a.
With a design face velocity set, the air volume changes as the sashes are raised or lowered.
b.
A minimum flow of 25 CFM per square foot of surface is recommended by the NFPA when the sash is closed.
7.
Superstructure and Mold Liner Material: Modular composite construction for total chemical resistance, strength, durability and reduced weight:
a.
Material: HiPel, white thermosetting resin surface layers with fiberglass reinforced composite core, 3/16 inch thick.
b.
Side Walls: 5 inches wide, chemically bonded creating a unitized right and left double wall superstructure.
c.
Materials are tested and classified by U.L. for Class A fire resistant, non-metallic materials used in laboratories.
8.
Fascia Posts: Aerodynamically angled to provide uniform air flow in the fume chamber.
9.
Removable Front Panel: Located above the sash allows access to electrical connections, light bulb change out, sash weights and duct connections.
10.
Exterior Side Panels: Unitized and chemically bonded to form homogeneous one piece side wall superstructure. HiPel resin.
a.
One inch air gap inlet under lower sash to insure uniform air flow at face and to sweep heavier than air vapors off floor.
b.
Upper airfoil provides clean flow of air in upper area of the fume chamber to minimize turbulent air flow through the fume chamber.
11.
Sash Height: 62 inches.
12.
Viewing Height: 70 inches.
13.
Interior Height: 82 inches.
14.
Sash:
a.
Glazing: Clear tempered safety glass.
b.
Counter balanced, connected with coated stainless steel cables.
c.
PVC framing track and aerodynamic sash lift.
 
** NOTE TO SPECIFIER ** Select sash assembly. Horizontal Sliding Sash is only available for 96, 120, and 144 inch wide hoods. Delete assembly options not required.
 
15.
Sash Assembly: Double Vertical.
16.
Sash Assembly: Horizontal Sliding Sash.
17.
Illumination of Work Area: Area inside the superstructure from side to side, from face of baffle to inside face of sash, and from working surface to a height of 52 inches.
a.
Minimum Illumination: 80 foot candles.
b.
Fixtures: 2 tube LED fixture:
 
** NOTE TO SPECIFIER ** Select fixture size. Delete fixture sizes not required.
 
1)
48 inch hood: 24 inch.
2)
60 inch hood: 36 inch.
3)
72 inch hood: 48 inch.
4)
96 inch hood: (2) 36 inch.
5)
UL and CSA listed.
6)
Mounted fixture with removable stainless steel light bracket with mirrored finish.
7)
Clear tempered safety glass panel provides vapor-tight barrier and seal to separate the fixture from the hood interior.
 
** NOTE TO SPECIFIER ** Explosion-proof fixtures are optional. Delete options not required.
 
8)
Explosion-proof fixture: Class I Division II.
9)
Explosion-proof fixture: Class I Division I.
C.
Materials:
1.
HiPel Composite: Two white surfaces chemically bonded to a fiberglass reinforced core layer of thermosetting resin. No exposed fiberglass.
a.
Nominal Thickness: 4.5 mm.
b.
Meets or exceeds NFPA 45.
 
** NOTE TO SPECIFIER ** Select glazing option. Delete glazing options not required.
 
2.
Sash Glass: 3/16 inch clear Tempered Safety Glass per ASTM C 1048.
3.
Sash Glass: 1/4 inch clear Laminated Safety Glass per ASTM C 1172.
4.
Sash Glass: 3/16 inch clear Polycarbonate Safety Glass.
5.
Sash Glass: 1/4 inch clear Polycarbonate Safety Glass.
D.
Fasteners:
1.
Interior Surfaces: PVC-capped #8 pan stainless steel screws and nylon bolts.
2.
Exterior Structural Members: #8 pan stainless steel screws and nylon bolts.
E.
Work Surfaces:
 
** NOTE TO SPECIFIER ** Select work surface option. Delete options not required.
 
1.
Epoxy Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Black.
2.
Phenolic Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Charcoal.
3.
316 Stainless Steel: 6 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
4.
304 Stainless Steel: 16 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.6
LE FM SERIES FUME HOODS
A.
Basis of Design: UniFlow LE FM Distillation Series by HEMCO Corporation.
B.
Components:
1.
Face Opening: Molded aerodynamic opening with upper and lower airfoils to minimize air flow turbulence and provide a constant volume of air flow.
2.
Baffle System: VaraFlow design with Vector slots:
a.
Material: HiPel composite resin.
b.
Fume hood shall effectively maintain safe, constant exhaust volume at any baffle position.
c.
Constructed of upper, middle, and lower sections.
d.
Positioned such that horizontal and vertical edge slots effectively create near laminar air flow through the fume chamber.
e.
Factory set such that the fume hood is at its optimum performance level.
f.
Lower Baffle: Staggered slotted array.
g.
Rounded edges to raw fumes smoothly through baffle system.
h.
Removable for cleaning.
3.
Exhaust Collar: Integral, bell shaped.
a.
Standard 12 inch round collars.
b.
Same HiPel material as hood structure.
c.
Chemically bonded to the fume chamber ceiling.
4.
Component Fume Chamber: One piece, molded.
a.
Liner: Non-conducting white HiPel, 3/16 inch nominal thickness. Constructed with a modular design allowing hood to be assembled in the field.
1)
Chemical resistant.
2)
Flame resistant. Meets UL 1805 and NFPA 45.
b.
Smooth finish for ease of cleaning.
c.
Interior Vertical Clearance: 78 inches nominal.
5.
Constant Air Volume (CAV) Model: Automatic air bypass to provide a constant air volume.
a.
When the sashes are closed, upper bypass and lower bypass is drawing 100 percent of the supply air.
b.
As the upper sash is raised, the upper bypass begins to close and is completely closed when the sash reaches the full open position.
6.
Variable Air Volume (VAV) Model: Restricted air bypass:
a.
With a design face velocity set, the air volume changes as the sashes are raised or lowered.
b.
A minimum flow of 25 CFM per square foot of surface is recommended by the NFPA when the sash is closed.
7.
Superstructure and Mold Liner Material: Modular composite construction for total chemical resistance, strength, durability and reduced weight:
a.
Material: HiPel, white thermosetting resin surface layers with fiberglass reinforced composite core, 3/16 inch thick.
b.
Side Walls: 5 inches wide, chemically bonded creating a unitized right and left double wall superstructure.
c.
Materials are tested and classified by U.L. for Class A fire resistant, non-metallic materials used in laboratories.
8.
Fascia Posts: Aerodynamically angled to provide uniform air flow in the fume chamber.
9.
Removable Front Panel: Located above the sash allows access to electrical connections, light bulb change out, sash weights and duct connections.
10.
Exterior Side Panels: Unitized and chemically bonded to form homogeneous one piece superstructure. HiPel resin.
a.
One inch air gap inlet under lower sash to insure uniform air flow at face and to sweep heavier than air vapors off floor.
b.
Upper airfoil provides clean flow of air in upper area of the fume chamber to minimize turbulent air flow through the fume chamber.
11.
Sash Height: 62 inches.
12.
Viewing Height: 68 inches.
13.
Interior Height: 78 inches.
14.
Sash:
a.
Glazing: Clear tempered safety glass.
b.
Counter balanced, connected with coated stainless steel cables.
c.
PVC framing track and aerodynamic sash lift.
 
** NOTE TO SPECIFIER ** Select sash assembly. Horizontal Sliding Sash is only available for 96, 120, and 144 inch wide hoods. Delete assembly options not required.
 
15.
Sash Assembly: Double Vertical.
16.
Sash Assembly: Horizontal Sliding Sash.
17.
Illumination of Work Area: Area inside the superstructure from side to side, from face of baffle to inside face of sash, and from working surface to a height of 82 inches.
a.
Minimum Illumination: 80 foot candles.
b.
Fixtures: 2 tube LED fixture:
 
** NOTE TO SPECIFIER ** Select fixture size. Delete fixture sizes not required.
 
1)
48 inch hood: 24 inch.
2)
60 inch hood: 36 inch.
3)
72 inch hood: 48 inch.
4)
96 inch hood: (2) 36 inch.
5)
UL and CSA listed.
6)
Mounted fixture with removable stainless steel light bracket with mirrored finish.
7)
Clear tempered safety glass panel provides vapor-tight barrier and seal to separate the fixture from the hood interior.
 
** NOTE TO SPECIFIER ** Explosion-proof fixtures are optional. Delete options not required.
 
8)
Explosion-proof fixture: Class I Division II.
9)
Explosion-proof fixture: Class I Division I.
C.
Materials:
1.
HiPel Composite: Two white surfaces chemically bonded to a fiberglass reinforced core layer of thermosetting resin. No exposed fiberglass.
a.
Nominal Thickness: 4.5 mm.
b.
Meets or exceeds NFPA 45.
 
** NOTE TO SPECIFIER ** Select glazing option. Delete glazing options not required.
 
2.
Sash Glass: 3/16 inch clear Tempered Safety Glass per ASTM C 1048.
3.
Sash Glass: 1/4 inch clear Laminated Safety Glass per ASTM C 1172.
4.
Sash Glass: 3/16 inch clear Polycarbonate Safety Glass.
5.
Sash Glass: 1/4 inch clear Polycarbonate Safety Glass.
D.
Fasteners:
1.
Interior Surfaces: PVC-capped #8 pan stainless steel screws and nylon bolts.
2.
Exterior Structural Members: #8 pan stainless steel screws and nylon bolts.
E.
Work Surfaces:
 
** NOTE TO SPECIFIER ** Select work surface option. Delete options not required.
 
1.
Epoxy Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Black.
2.
Phenolic Resin: 1-1/4 inches thick, molded to contain chemical spillage, dished section not less than 1/4 inch thick. Charcoal.
3.
316 Stainless Steel: 6 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
4.
304 Stainless Steel: 16 gauge, #4 finish, dished construction with marine edge, dished section not less than 1/4 inch thick.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.7
ACCESSORIES
A.
Service Fittings and Fixtures: Manufactured by the Water Saver Fixture Company or approved equal.
1.
Indicate proper service using color coding, as follows:
 
** NOTE TO SPECIFIER ** Delete services not required.
 
a.
Carbon Dioxide (CO2): Pink.
b.
Gas (GAS): Blue.
c.
Distilled Water (DS): White.
d.
Air (AIR): Orange.
e.
Hydrogen (HYD): Pink.
f.
Vacuum (VAC): Yellow.
g.
Nitrogen (NIT): Brown.
h.
Steam (STM): Black.
i.
Oxygen (OXY): Light Green.
j.
Cold Water (CW): Green.
k.
Hot Water (HW): Red.
l.
Deionized Water (DI): White.
m.
_______.
2.
Finish of Service Fittings Inside the Hood: Epoxy finish, color coded to service index color.
 
** NOTE TO SPECIFIER ** Select handle finish. Delete finish not required.
 
3.
Handle Finish: White nylon handle and guide flange with a full-view screw-on colored index button.
4.
Handle Finish: Forged brass handle with a full-view screw-on colored index button.
B.
Electrical Services:
1.
All electrical receptacles, duplexes, and switches prewired to a single junction box for electrical connection.
 
** NOTE TO SPECIFIER ** Select receptacle option. Delete receptacles not required.
 
a.
Receptacles: 3-wire, 15 amp duplex, 115 VAC.
b.
Receptacles: 3-wire, 20 amp duplex, 115 VAC.
c.
Receptacles: 3-wire, 15 amp duplex, 230 VAC.
d.
Receptacles: 3-wire, 20 amp duplex, 230 VAC.
e.
Receptacles: _____.
 
** NOTE TO SPECIFIER ** Select light switch option. Delete light switches not required.
 
f.
Light Switch: 3-wire, polarized grounded, 15 amp, 125 VAC.
g.
Light Switch: _____.
h.
Plates: Nylon.
i.
UL and CSA listed.
C.
Plumbing Services:
1.
Conforms to ANSI Z21.15.
 
** NOTE TO SPECIFIER ** Delete materials required.
 
2.
Epoxy Resin Sink: Laboratory sink made of chemical and corrosion resistant epoxy resin. Drop-in sink. Includes sink stopper and drain outlet.
a.
Location: _____.
3.
Polypropylene Sink: Laboratory sink made of chemical resistant heavy duty polypropylene. Drop-in sink. Includes drain outlet.
a.
Location: _____.
4.
Polypropylene Sink: Laboratory sink made of one-piece, type 304 stainless steel and polished to a No. 4 satin finish. Drop-in sink. Sound deadened to reduce drumming. Includes drain outlet.
a.
Location: _____.
5.
Cup Sink, 6 inch diameter: Polyolefin cup sink with 1-1/2 inch IPS tailpiece and outlet strainer.
6.
Oval Cup Sink, 3 x 6 inches: Polyolefin drop-in cup sink with 1-1/2 inch IPS tailpiece and outlet strainer.
7.
Oval Cup Sink, 3 x 9 inches: Polyolefin drop-in cup sink with 1-1/2 inch IPS tailpiece and outlet strainer.
8.
Oval Wall Cup Sink, 3 x 6 inches: Polyolefin cup sink with 1-1/2 inch IPS tailpiece and outlet strainer.
9.
Jar P Trap: Includes adjustable 1-1/2 inch IPS tailpiece and removable jar.
10.
P Trap: Polypropylene with 1-1/2 inch IPS tailpiece.
D.
Instruction Plate: Corrosion resistant or plastic plate attached to the fume hood exterior with condensed information covering recommended locations for apparatus and accessories, use of sash, and recommended safe operation procedures.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
INSTALLATION
A.
Clean surfaces thoroughly prior to installation.
B.
Install in accordance with manufacturer's instructions and approved submittals. Secure work surfaces to casework securely. Test for proper operation and adjust until proper operation is achieved.
3.3
PROTECTION
A.
Protect installed products until completion of project.
B.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION