 | Model Shown: No. 1000-00 bench,
with No. 1524-50 uprights,
1700-76 light and 1000-65 shelf. |
| Lock-In Light/Shelf Assembly—
Houses a light fixture, ionizing equipment, and as many shelves as you require. |  | "A"-Base Design (shown with 36" uprights,
light and shelf) |
|  | "C"-Base Design (shown with 18" uprights
and shelf) |
| Modular Cleanroom Work Stations
Performance, Versatility, and Economy The modular construction of Terra work stations lets you order the work surface and accessories you need, straight from stock. Their lock-in frame lets you adjust height or expand their capabilities as your requirements change. Frame and leg members are fabricated of heavy-duty, all-welded 1.5" or 2" square tubing to support the heaviest loads without sagging. All materials are selected and fabricated to meet or exceed Class 100 cleanroom standards.  The adjustable "A"-base models feature telescopic legs that let you adjust the work surface to suit your application (from 25" to 34" floor-to-top). This feature is important if you must maintain a standard work surface height in automated processes. Its retractable design also makes shipping and storage more economical. These benches include nonmarking levelers.
The "C"-base design combines strength with comfort. The sturdy 14-gauge steel tubing and welded construction eliminate the need for forward legs under the work surface that bang knees and chairs, thereby helping to isolate the work surface from accidental bumps and jars. The forward ends of the bottom runners are protected by 304 stainless steel scuff guards. All steel members feature an epoxy or powder coat finish (except tables made entirely of 304 stainless steel or electropolished 304 stainless steel). Stainless steel feet are adjustable for proper leveling. "C"-frame tables are 32" high (floor-to-top). Benchtops are available in 304 stainless steel, nonconductive or dissipative laminate, and polypropylene. Laminate Benchtops
Static-Dissipative Plastic Laminate combines the chemical- and heat-resistive properties of plastic laminate with a controlled path to ground for dissipation of static charge without voltage suppression ambiguity. This laminate has a micro-thin layer of aluminum oxide (moho hardness of 9; diamond - 10) integrated directly into its surface, creating an extremely hard protective layer, which provides long-term resistance to surface abrasion. This material has also been specifically tested for particle trapping (see test results below.) Each sheet used in fabrication is individually certified to meet the values set forth at below. These counts are very low. Under the same test conditions, a material which does shed particles would give off thousands of particles in the 10- and 5-micron range. This material is thus certified as cleanroom safe.Non-Conductive Laminate shares many characteristics with static-dissipative laminate, except surface resistivity. In surface resistivity tests, this laminate material measured between 4.1 x 1011and 7.4 x 1012(omega)/sq. It is generally resistive to most solvents as well as hot solder; however, mineral acids (such as hydrochloric, sulphuric, or nitric acid) should not be allowed to contact to laminate. This material is suitable for cleanroom use and will not outgas. | Particle Trapping Test | Particles/cu. ft. air in 16 sq. in. area
(microns) | | Sample: | 10 | 5 | | Cleanroom Air: | 0 | 1 | | Water Washed Sample: | 9 | 9 | | Ethyl Alcohol Washed Sample: | 10 | 15 | | Acetone Washed Sample: | 7 | 10 | Freon TF Washed Sample: | 17 | 12 | | Silica Gel & Iron Oxide-Contaminated Surface Washed with Ethyl Alcohol: | 5 | 20 | |
Specifications | | General | Thickness: | .040 Nominal | Chemical Resistance: | Resistive to common solvents such as Acetone, Trichloroethylene, Solder Flux, Isopropyl Alcohol, and Naptha | | Thermal Resistance: | 350°F with no charge per NEMA LD 3.06 and NEMA LKD 3.08; molten solder will not mar surface | Abrasion Resistivity: | Typical NEMA Value—1550 cycles; Wear Rate of .006 gm/100 cycles | Cleaning: | Clean with water only, or with a mild, nonabrasive, ammoniated detergent and rinse; DO NOT use wax or other coatings | | Electrical | Typical | Certified | | Surface Resistivity per ASTM D-257: | 107 (omega)/sq | 106-9(omega)/sq. | | Resistance to Ground Ohms— NFPA 99: | 107 | 106-9 | Decay Rate per Fed Test 101C, Method 4046:
(5,000 to 0 Volts) | .01 sec. | .5 sec. | |
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