B. Complete removal of corrosion products is also necessary, or the corrosion
could come back. Carefully examine all of the area to make sure all corro-sion products and other contamination are gone.
C. Dye penetrant inspection will not show if all of the corrosion products were
removed from an area. The area must be visually examined to be sure.
D. The area must be clean, without paint, oil or grease, before you can treat
it for corrosion.
E. Corrosion can be removed by mechanical procedures or chemical procedures.
The details and the selection decision will be different for different
amounts of corrosion and different types of metal. Refer to par. 7 for gen-eral data about these procedures. Refer to par. 8 and on for details for the
different metals.
2. Safety Procedures
NOTE:Refer to par. B. for emergency safety procedures.
A. General Safety Precautions. Obey these safety precautions when you use sol-vents, special cleaning compounds, paint strippers (strong alkalies or
acids), etchants (corrosion removers that contain acids) or conversion
coating chemicals.
(1)Do not breathe solvent or acid vapors. Do not use solvents or acids in
confined spaces without sufficient ventilation or approved respiratory
protection.
(2)Do not add water to acid. Always add acid to water. Water added to acid
will boil at an explosively rapid rate.
(3)Do not mix chemicals unless as given in the procedures.
(4)Make sure water for emergencies is available at the work area before
work is started.
(5)Do not let your skin touch solvents, cleaners, acid etchants, or conver-sion coating material. Put on rubber plastic gloves when you use these
materials. Put on goggles or plastic face shields and rubber raincoats
and rainhats when you clean, strip, etch, or apply conversion coating to
overhead surfaces.
(6)When you mix alkalies with water or other agents, use containers which
are resistant to the heat that will result.
(7)Wash your skin or clothing immediately after it touches paint stripper,
etchant or conversion coating material.
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(8)If material gets in the eyes, quickly flush it out with water. Then send
the injured person to the medical department for further treatment.
(9)Do not eat or keep food in areas where it could absorb poisons. Always
wash your hands before you eat or smoke.
(10)Clean all equipment after work is completed.
B. Emergency Safety Procedures. Know these emergency safety procedures before
you use materials which refer to an emergency safety procedure.
WARNING: IMMEDIATE AID IS MOST IMPORTANT IN SKIN, EYE, AND RESPIRATORY TREAT-MENT. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 防腐手册 CORROSION PREVENTION MANUAL 第二册 一般信息(16)
