(WORK SPACE, Calculate room sizes. Finishing 16 students 46 square fee - PDF document

(WORK SPACE, Calculate room sizes. Finishing 16 students 46 square feet per square feet. Darkroom: feet per student square feet. Although hypothetical, the Le~end @~ispla~ -finished in - countertop to ceiling @ ~ase Cabinets with multiple slide out Print Drying Screens Counter top 30" deep 34" high w~th storage cabinets below @ADA Counter top 36" deep x 34" high w~th storage cabinets below @ADA Counter top 30" deep with wheelchair opening @ADA work tables 96"x36"x34" high w~th locking casters castered ergo-pneumatic stools by others) & Print b Sink with 5 & Dual-head Eye-Wash fume exhaust Vent-Hood with 0. adjustable damper & Pipe Chase @ Light-tight Entrance-Exit Maze with 8 ceiling finished 34" 9 ~gh Counter TOPS 17" e 15 Wall Storage Cabinets with (2 torage Cabinets & Counter Top at for a Q s shelf and feature for other @ 15 Standard wlth Light Baffles between each station, reflects safelight high ceiling @ Automatic Silver Recovery System reduces sllver effluent to less PVC Fume Exhaust Vent-Hood exhausts Q c emical fumes evenly @ ample space 10 students at 12-9" (plus washer) x 51" wide, equipped with Mixing Faucet & Dual-head Eyewash @) Return-air Duct and @ M05 BY PAUL J. SEBASTIAN. PE LANCASTER PA 17601-5734 (LIGHT TRAPS, finished exactly as specified below entering the Dark- The dimensions Figure followed very The considered a a 60-inch diameter wheelchair turning circle The ceiling, floor and walls must a non-reflective "flat-black" The Maze themroom CONSIDER ROOM FINISHES -1 , . / \ / \ \ 42" 1 Wheelchair \ Turning iu 42" d I A smooth board ceiling Most ceiling tiles flake-off and drop dust, lint and other particles and equipment. ceilings leak white from adjacent block walls are excellent choice of wall They are easy and they very durable. Ceilings should white for white ceiling the Finishing general room lighting. Darkroom walls should painted a gray. To minimize reflections at enlarger walls are painted "flat-black" a height of the floor. working with color walls should with a continuous "tack board" material counter top ceiling painted a light gray color enhance displays. the Darkroom and Finishing finished with of a "slate-gray" color Armstrong's Step Master Excelon Tile #50792." has a rough surface prevent slipping Traps must be finished "flat-black" surfaces (ceiling, walls and floor) maintained a "flat-black" prevent white light reflecting into jambs and thresholds of hinged doors leading to the Film Loading with a "flat-black" finish stop light leaks. (VENTILATION, continued) is the ultimate method of removing temperature should range between 72' and 74OF (70°F for winter months.) Room air should be filtered, replenished with fresh air and well circulated. Relative humidity range from 55 to 65% when air is at 74'~. CONSIDER THE WATER SUPPLY Again, since every project is different in is difficult to specify exact sizes and pressures and print washers. All this is best assigned engineer qualified to It is good to supply the designer catlog sheets for faucets and temperature controls you want to You must be assured that (all faucets you will have sufficient water flow wash negatives and prints. Emphasize Water should and must clean and clear. A micron water each sink and each washer very wise investment. Hardness limited to 40 (parts per million) CaC02. The "ph" (parts hydrogen, a measure acidity) should be between water temperature should range between 110° and 120°F. Cold water should be supplied at 58OF if this temperature can- be maintained, an under-the-sink water chiller unit should be installed. require insulation to eliminate condensation. Consider personnel environmental safety. The Occupational Safety and Health Administration (OSHA) requires personnel be trained be protected from hazardous fumes and chemicals. A binder containing Material Safety Data Sheets (MSDS) your supplier) each chemical be taken to prevent corrosion chemical spills. All chemical containers must conspicuously labeled. A dual-head emergency eye-wash unit is each process- a spill-kit, extingusher and first-aid kit. remove silver from chemi- is required federal, state and it's the right thing Chemical fumes exhausted through a correctly designed vent-hood precisely positioned where the fumes are generated. Film and print sinks processors must be thoroughly vented. Consider Sebastian Vent-Hoods which are built with precision, independently tested and engineered processing, developer contaminate fixer silver producing a "spent-fix." The Environmental Agency (EPA) and other sewer codes require the silver be removed from spent-fix before disposal. removed, spent-fix longer considered a hazardous waste and may All effluent for "ph" Mix concentrated sink with a well-designed and correctly vent-hood. Mixing chemical powders, however, must be done a respirator, apron and gloves should be worn. Daily removal necessary to odors. A schedule general cleaning should also established and maintained. Each operator should be her area. An excellent practice to follow as you go!" A photo Darkroom must be universally accessible, be safe for teacher and students, and be designed managed so for the as well. CONSIDER LIGHTING & General lighting the Finishing Room order to correctly judge color and transparencies. Fluorescent tubes rated K are recommended Do not use and Film of the "afterglow" when the lights are extingushed. White light students, teacher demonstrations, maintenance and cleaning. Loading Rooms do not require safelight, but necessary for cleaning.