TM 1-5855-265-20
3-22
3-8. OPTICS CLEANING PROCEDURES (cont)
WARNING
NITROGEN
• Asphyxiant: Nitrogen displaces oxygen. In a
confined area, it can cause death by
suffocation or serious injury.
• Use only in a well-ventilated area.
• If you experience shortness of breath or an
increase in heart rate, get to fresh air at
once.
(1) Blow optical surface with nitrogen or dry
air.
(2) Have optical surface inspected. If
surface is clean, perform ongoing
maintenance task. If surface is dirty,
proceed to c below.
c. Clean heavily contaminated optics.
(1) Blow optical surface with nitrogen or dry
air.
(2) Mix 1/8 ounce alconox in 1 pint of de-
ionized water in 1 pint applicator bottle.
WARNING
TRICHLOROTRIFLUOROETHANE
• Toxic, irritating. Can cause breathing
problems, eye damage.
• Don’t: Let it get on skin, or breathe
vapors.
• Do: Use in well-ventilated area, close
containers when not using. Wear acid-type
safety goggles.
• If it contacts skin or eyes, wash affected
areas with running water. Get medical help
at once.
• If you experience any breathing problems,
get to fresh air at once.
CAUTION
Clean fingercots or disposable plastic gloves
must be worn when performing this procedure.
Clean fingercots with trichlorotrifluoroethane
just after placing them on fingers. Do not touch
anything except cleaning materials to prevent
contamination.
(3) Cover fingers to prevent contamination
of optical surfaces.
• Use clean, surgical rubber fingercots on
thumb and fingers of working hand
or
• Use disposable plastic gloves.
NOTE
Use new, clean lens paper. Discard lens paper
after it has been used once.
(4) Moisten lens paper with detergent
solution using applicator bottle.
(5) Wipe optical surface using single
strokes in one direction only. Use a new
lens paper for each stroke.
(6) Repeat steps (4 and 5) above until
entire surface has been cleaned.
WARNING
NITROGEN
• Asphyxiant: Nitrogen displaces oxygen. In a
confined area, it can cause death by
suffocation or serious injury.
• Use only in a well-ventilated area.
• If you experience shortness of breath or an
increase in heart rate, get to fresh air at
once.
(7) Blow optical surface with nitrogen or dry
air.
