Cleaning the White Standard
For Agera Serial Number >AGR00405: This Ultra White tile standard may be cleaned using a variety of readily available solutions for cleaning glass surfaces. This includes laboratory cleaners such as Sparkleen, Windex or a mild solution of vinegar and water. Rinse with water and dry using a micro-fiber cloth or with compressed air.
For Agera Serial Number AGR00305 to AGR00405: This is a white porcelain tile. See instructions below for Green Tile.
For Agera Serial Number <AGR00305: The White Standard has a durable optical coating and should be handled with care to prevent contamination from finger oils, scratches and harsh chemicals. If the surface appears lightly soiled, it may be air brushed with a jet of clean dry air. For heavier soil, the White Standard can be cleaned by scrubbing with a soft brush under running water. Blow dry with clean air or allow the material to air dry. If the material is heavily stained, soak with either an extremely mild mix of soap and water, 5% distilled vinegar or hydrogen peroxide. Then run under water while scrubbing with a soft brush. Always keep tiles in the Standards Box when not in use.
Cleaning the Black Glass and Green Tile
The Green tile and Black Glass can be cleaned using a soft nylon-bristle brush, warm water, and laboratory grade detergent such as SPARKLEEN. Wipe the tiles dry using a clean, non-optically brightened, lint free paper towel, or use warm water as a rinse and let stand to air-dry in a couple of minutes.
Note: SPARKLEEN is manufactured by Fisher Scientific Co., Pittsburgh, PA 15219, and may be ordered from them using catalog number 4-320-4. Add one tablespoon of SPARKLEEN to a gallon of water.
The above procedure is particularly useful if the lab area is not clean. If, however, the lab is clean, an equally effective method for occasional tile cleaning is to use IPQ (isopropyl alcohol) sprayed onto a clean, non-optically brightened, lint free paper towel such as a Kim wipe. Wipe tile thoroughly watching for fingerprints and let air dry.
Keep the Black Glass in the standards case when not in use to prevent it from becoming scratched or collecting dust. Before standardizing the instrument, check the black tile for scratches and dust. Significant scratches that result in a hazy appearance to the finish may cause standardization to be in error. If the black tile is scratched, call the HunterLab Order Processing Department or contact your local HunterLab representative to order a replacement.