Revision H, 11/10 VK 7025 Dissolution Apparatus Page 101
P/N 70-9033 Operator’s Manual Maintenance and Troubleshooting
Varian, Inc.
Water Bath / Acrylic Care
The water bath supplied with the VK 7025 Dissolution Apparatus should be maintenance
free except for an occasional cleaning. If you use a water bath algaecide or clear bath
product, ensure it is compatible with PETG and acrylic. The flow paths in the heater /
circulator are primarily stainless steel and should tolerate most clear bath formulations.
Check with the product manufacturer to be sure the product is safe for your water bath.
1. All of our water baths are fabricated entirely of commercial grade acrylic. When using
them with corrosive materials such as hydrochloric acid or media containing salts, be
sure to rinse them thoroughly with deionized water immediately after each use, and
dry thoroughly with a soft towel or cloth.
2. Do not clean with abrasive cleansers or cloths. Use deionized water whenever
possible. If you must use a cleanser or solvent, be sure that it is as mild as possible,
non-abrasive, and fully compatible with PETG and acrylic before use. If in doubt, call
the service department for advice before proceeding.
3. Do not use ammonia, window-cleaning sprays, kitchen scouring compounds, or
solvents such as acetone, gasoline, benzene, alcohol, carbon tetrachloride, or
lacquer thinner. These can scratch the material’s surface and / or weaken it causing
small surface cracks called “crazing”.
4. Our recommendations include but are not limited to the following:
• Hot water:< 150 °F
• Household ammonia
• Vinegar (5% Glacial Acetic Acid)
• Ethyl alcohol: maximum 10%
Note
The following information pertains to any items, in addition to the
water bath, made of acrylic.
Caution
Do not use cleaning compounds containing ammonia or abrasive
cleaners on your water bath.
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