This
PLASTIC SHEET
smendment which forms
L-P-378D
AMENMENT-1
December 21,
1973
FEDER4L SPECII?ICATION
AND STRIP, THIN GAUGE, K)LYOLEFIN
a part of Federal Specification L-P-378D, dated
December 8, 1972, was approved by the Commissioner,
General Services Administration, for the use of all
PAGE 1
1.2.1 Add the,following in proper sequence: “Type
weatherable polyethylene”.
2.1, in
PAGE 3
Federal Supply Service,
Federal agencies.
v
- Heat shrinkable
title for MIL-STD-147.
Delete “or” and substitute “for”.
PAGE 4
following new paragraph in proper sequence.
Add the
“3.1.3 Type V. The material shall be flexible, unsupported polyethylene
film meeting the initial requirement for type IV. After acceleratedweather-
ing, the type V material shall meet the requirements for tensile strength,
elongation, and tear strength specified in table I.
The film shall be
natural, transparent, colored only by the ultraviolet inhibitors which may
vary the shade frcuncolorless to a transparent green tint.”
PAGES 5, 6, and 7
Table 1, in the heading, after “Type IV”. Add “and V“.
PAGE 7
In heading of table, after “Type IV and V“.
Add “3f”.
Add ,We following new footnote in proper sequence.
“~ Appreciable chsnge in color means
a change which is ~ed.iately noticeable
ti ccmparing the test spectiens with the orginal unexposed material.
If closer
inspection or a change of sngle of light is required to make a slight change
in color, the change is not considered appreciable.
All the physical properties
shsll meet or exceed the original minimum requirements as specified for the
type IV film. After acceleratedweathering, tensile strength, elongation and
tear strength shall meet or exceedcthe original minimum requirements.”
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