MIL-STD-1330D(SH)
20 September 1996
4.3.3.5 Solution preparation. Prepare NID solution by adding 0.1 to 0.5 ounces of NID to each gallon of water. Prepare NOC and NID solution by adding 0.1 to 0.5 ounces of NID to each gallon of NOC diluted 50 percent with water. Prepare TSP and NID solutions by adding 0.1 to 0.5 ounces of NID to each gallon of water containing 8 to 12 ounces of TSP. NID solutions shall be used at temperatures not greater than 140EF. At temperatures greater than 140EF, the solubility of NID
will decrease leading to possible precipitation of NID.
4.4 Cleaning solvents.
4.4.1 NAVSEA approved halogenated solvents.
4.4.1.1 Applicability. A NAVSEA approved halogenated solvent, as specified in appendix E, shall be used as a final cleaner for instruments as specified in
5.4, for liquid oxygen generating plants and plant piping as specified in 5.8, and for field wipe as specified in 5.10.1.1 and 5.12.4. Use of a NAVSEA approved halogenated solvent for any other application requires local engineering, environmental, and industrial hygiene approval.
4.4.1.2 Safety precautions. For any NAVSEA approved halogenated solvent, follow the safety precautions recommended in the vendor's material safety data sheet and the following:
(a) At least two people shall be present at all times while solvent is being used. Do not leave the area unattended while cleaning is in progress.
(b) When a halogenated solvent is being transferred by hose or pipe
from a remote location, communication shall be established between
the pumping station and the space involved.
(c) To permit escape in the event of an accidental spill, a self-
contained breathing device shall be immediately available to each
person in any space where operations involving a halogenated
solvent are taking place or occupied spaces where leaks may occur
while systems containing halogenated solvents are being cleaned,
tested, serviced, or repaired. Each person shall have received
instruction and practice in the use of the particular self-
contained breathing device to be used. When a spill occurs, a
high concentration of solvent vapor may rapidly fill the space and
dilute the air in the space. Breathing this diluted, contaminated
air can result in rapid (10 to 15 seconds) loss of consciousness
caused by oxygen being washed from the lungs. It is therefore
necessary to stop breathing until the self-contained breathing
device has been put on and is supplying air. The Navy "Emergency
Escape Breathing Device" (EEBD) may be used for emergency escape.
(d) All hot work in the space shall be suspended before introducing the
solvent into the system. An exception is that during overhaul in
a shipyard, hot work may be performed on board a ship while
systems are being flushed (not pressure tested) with halogenated
solvents if each operation is authorized by a gas free engineer.
Personnel shall be instructed to leave the area immediately if
anyone experiences any irritation of the eyes, nose, or throat.
During specially authorized hot work, self-contained breathing
devices for emergency escape are not required in spaces where all
lines being flushed contain only welded joints (no flanges,
valves, or other fittings having mechanical joints). The
following caution sign shall also be displayed at the entrance to
all work spaces:
WARNING
HALOGENATED SOLVENT OPERATION; DO NOT ENTER UNOCCUPIED SPACE WITHOUT FIRST TESTING FOR SOLVENT; NO HOT WORK OR OPEN FLAMES ALLOWED IN THIS SPACE EXCEPT WHEN AUTHORIZED BY A GAS FREE ENGINEER; LEAVE SPACE IMMEDIATELY IF ANYONE NOTICES ANY EYE, NOSE, OR THROAT IRRITATION.
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