15
MAINTENANCE
19.0 CLEANING: Stainless steel will resist
corrosion; however, it is not impervious to it. Proper
maintenance of the stainless steel bath chamber
will help assure many years of service. It should
be cleaned regularly with mild soapy water and
rinsed with distilled water. Should algae or other
undesirable microorganisms form on the top of the
bath media, add a little formaldehyde or zephiran
chloride to alleviate this problem.
CAUTION
AVOID SPILLING HARSH CHEMICALS ONTO
THE BATH AS CORROSION OF THE
STAINLESS STEEL MAY RESULT.
IMPORTANT
IF IT IS NECESSARY TO USE THE FOLLOWING
CHEMICALS, LIMIT THE TIME TO A MAXIMUM
OF FOUR HOURS. CLEAN SURFACES
IMMEDIATELY AFTER USE.
-Aluminum Chloride
-Barium Chloride
-Bichloride of Mercury
-Calcium Chloride
-Carbolic Acid
-Chlorinated Lime
-Citric Acid (boiling)
-Dakin's Solution
-Ferrous Chloride
-Mercury Salts
-LysolMercuric Chloride
-Phenol
-Potassium Permanganate
-Stanous Chloride
-Sodium Hypochlorite
-Tartaric Acid
-Potassium Thiocyanate
CAUTION
NEVER USE THE FOLLOWING CHEMICALS.
-Aqua Regia
-Ferric Chloride
-Iodine
-Sodium Azide
-Sulfuric Acid
19.1 Removing Discoloration: Should the stainless
steel ever become discolored by iron rust, use the
following procedure to remove all traces of the rust
and restore the stainless steel.
WARNING
OBSERVE THE FOLLOWING SAFETY
PRECAUTIONS! USE HEAVY GLOVES OR
OTHER ADEQUATE EYE PROTECTION. ONLY
WORK IN AREAS WITH ADEQUATE
VENTILATION.
Prepare a solution of 20% nitric and 1.5%
hydrochloric acid (if preferred, a 2% to 5% solution
of warm oxalic acid may be used). Swab solution
over surface, allowing it to remain until all rust is
loosened. This will usually take 1 to 2 minutes.
As soon as rust is loosened, immediately flush with
clean water until all acid is removed. Dry
thoroughly.
