SPECIFICATIONS.docx

Government list of Minimum Specification for Acid Digestion Laboratory Fume Hood.

1.0 SPECIFICATIONS

A. 5 foot wide, 30 inch deep fume hood. Service fixtures for compressed air and vacuum.

B. Capable of Acid Digestion (sulfuric, nitric, hydrochloric) C. Capable of sulfuric, nitric, and hydrochloric acid use as well as strong bases such as concentrated hydrogen peroxide.

D. One GFCI electric duplex 115V, 50/60Hz E. One electric duplex 230V, 20A F. Two 30 inch wide base acid storage cabinets with shelves.

G. Ventilation kit for two base acid storage cabinets.

H. Epoxy resin spill stopper work surface. Minimum 58 inches wide by 28 inches deep.

I. Fume hood air flow monitor.

J. External fiberglass blower, 12 inch, minimum ½ hp.

K. Manual duct damper, 12 inch.

L. Zero pressure weather cap, 12 inch.

2.0 REGULATIONS AND STANDARDS

The laboratory hoods must conform to the following regulations and standards.

SEFA 1, Scientific Equipment and Furniture Association, Recommended Practices for Laboratory Fume Hoods SEFA 8, Recommended Practices for Laboratory Grade Metal Casework, 8.0 Cabinet Surface Finish Tests NFPA 45, National Fire Protection Association, Fire Protection for Laboratories Using Chemicals ASTM E84-09C, ANSI 2.5, NFPA 255, UL 723, UBC 8-1 (42-1), Standard Test method for Surface Burning Characteristics of Building Materials ASHRAE 110, American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Method of Testing Performance of Laboratory Fume Hoods ANSI/AIHA Z9.5, American Industrial Hygiene Association, Laboratory Ventilation OSHA, Federal Register 29 CFR Part 1910, Occupational Safety & Health Administration, U.S. Department of Labor, Occupational exposures to hazardous chemicals in laboratories.

The laboratory fume hoods must carry the ETL listed mark for the following.

UL 61010-1 (formerly 3101-1), Underwriters Laboratories Inc., Electrical Equipment for Laboratory Use CAN/CSA C22.2 No. 61010-1, Canadian Standards Association, Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use UL 1805, Underwriters Laboratories Inc., Standard for Laboratory Hoods and Cabinets 230 volt model fume hoods must carry the CE conformity marking as required by the Council of European Communities.

3.0 PERFORMANCE REQUIREMENTS

A. General Design Requirements Fume hoods shall function as ventilated, enclosed workspaces, designed to capture, contain and exhaust fumes, vapors and particulate matter produced or generated within the enclosure.

Fume hood shall be factory designed to function as a by-pass fume hood.

Structure and Materials of construction Hoods are of double-wall construction Powder-coated, cold rolled steel exterior Galvanized steel support members One-piece, monolithic, molded polyester resin liner Baffles One-piece, monolithic, molded polyester resin Moving or adjustable baffles are not acceptable Sash Maximum opening is 28".

Unobstructed viewing height is 37.5".

Hood incorporates a perforated sash handle to bleed air into the hood chamber directing fume concentrations away from the user's breathing zone.

Airfoil:

Hoods are provided with an airfoil across the bottom of the sash area that allows airflow into the hood regardless of user's position.

Besides the exhaust blower, no additional blowers are required for specified containment.

Access for maintenance is from both the front and exterior sides of the hood.

Services:

Hood manufacturer shall furnish and deliver all service outlets, accessory fittings, electrical receptacles and switches, as listed in these specifications, equipment schedules or as shown on drawings.

Plumbing fittings mounted on the fume hood superstructures shall be pre-plumbed per section.

Final plumbing and electrical connections are the responsibility of those contractors fulfilling requirements of Divisions.

All electrical services are pre-wired to a single point internal junction box at the top right of the hood.

Hoods without service fixtures must pass through a 33” opening without disassembly.

4.0 QUALITY ASSURANCE

0. Fume hoods shall be designed, including comprehensive engineering analysis, by a qualified, licensed Professional Engineer.

Manufacturer’s Qualifications ISO 9001 Certified manufacturing plant and processes.

Only hood manufacturers who have had fume hoods as a principal product for 30 years are considered.

Fume hoods shall be Made in America.

95% or more of raw material and component suppliers shall be United States based.

Stainless and cold rolled steel used in manufacturing shall be sourced from United States steel mills.

Final product must be fabricated and assembled within the United States of America.

Owner reserves the right to evaluate Made in America claims for compliance with the Bureau of Consumer Protection.

Supply all equipment in accordance with this specification. Offering a product differing in materials, construction, or performance from this specification requires written approval obtained seven days or more before the proposal deadline.

The owner/architect reserves the right to reject qualified or alternate proposals and to award based on product value where such action assures the owner greater integrity of product.

Manufacturer's warranty against defects in material or workmanship on its fume hoods will be for 1 year from date of installation or 2 years from date of purchase, whichever is sooner, and includes replacement of parts except lamps.