PS Magazine - TB 43-PS-727
PS, The Preventative Maintenance Monthly
ISSUE 727
JUNE 2013
56
PS 727
JUN 13
•±
Clean and dry the item.
•±
Select and apply a preservative coating to the item or
parts of it, if called out in the preservation instructions.
The manufacturer normally applies permanent preserv-
ative coatings to electrostatic-sensitive devices (ESDS).
•±
Apply a greaseproof wrap only if a soft, drying
preservative has been applied to the item.
•±
If greaseproofing is not required, apply a neutral wrap
with a noncorrosive, dust-protective wrap before or
during unit packing.
•±
Place the item, including the required number of
desiccant bags, wrapped and cushioned into a close-
fitting, heat-sealed bag that meets specifications in
MIL-DTL-117,
Bags, Heat-Sealable.
Bags made from the
following material meet MIL-DTL-117 requirements:
MIL-PRF-131, Type I or II, Class 1 or 2 and MIL-
PRF-81705, Type I, Class 1 (ESDS items only).
•±
Firmly secure the humidity indicator immediately
within the closable edge of the bag.
•±
Mark the bag in accordance with MIL-STD-129,
•±
Military Marking for Shipment and Storage.
Apply a
Method 50 label.
welcome to the
final article
in our military packaging
preservation series.
method 50
is the only remaining
“exit” available from
the methods of
preservation maze.
to use method 50,
you’ll need to use
water- and vapor-
proof protection
with desiccant.
for
sub method 51,
you’ll also enclose
your preserved,
wrapped, cushioned
and desiccated item
in a sealed bag.
use a humidity indicator
and a method 50 label.
follow these steps…
for months
we’ve guided you
through a
maze!
it wasn’t a literal maze, but a maze
of
confusion
over the
different
methods
of packaging preservation.
So once again, bring along your
trusty map, mIl-std-20
7
3-1,
standard
practice for military packaging.
Wipe item with
clean cloth
Wrap item in neutral
cushioning material
Place cushioned item in
container and add desiccant
and humidity indicator
Crimp metal top to
fiber container to seal
Apply identification
and method 50 labels
to complete the pack
Exiting the
Methods of
Preservation
Maze:
Method 50
This is the
last
article in a series,
which began with
“Clearing the Methods
of Preservation Maze”
on Pages 52-53 in
PS
7
22 (Jan 13).
Packaging…
note:
if you must use a carton
or box with the unit container,
place the cushioning specified
in the contract or order
between
the bag and the
carton or box.
mark the carton or
box the same way
as the bag.
yikEs!
wrong
Maze!!
727 56-57.indd
1-2
5/2/13
10:46 AM
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