MIL M 20693B (修正1) 硬质聚酰胺(尼龙)成型塑料 (1977年2月10日) [由ASTM D4066修订)

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MIL-M-20693B
AMENDMENT1
28 June 2979
MILITARY SPECIFICATION
MOLOING PLASTIC
,
POLYANIOE(NV LON)
,
RIGIO
This amendment forms a part of Ml 1ttary Speclf Icatlon
MIL-14-20693B, dated 10 February 1977, and is approved
for use by al 1 Departments and Agencies of the Depart-
ment of Oefenae.
PAGE 2
3
.
1
,
at end of santence: Oelete “(see 6
.
2)” and substitute’’(see 6.2 and 6.9).
PAGE12
Add the following new paragraph:
6
.
9 Recovered Monceners-
Some polyamides can be depolymerfzed to their constituent
moncmer(s), purlfled and repoljmerfzed.
This can be an economical method for reuse
of scrap polyamlde. Polyamides synthesized frc+n purffled, regenerated monomers in
this m?.nner shall be considered virgin material to meet the
requlrenents of paragraph
3
.
1 but recovered Miter{al to qualif y for considera t ion under PL 94-580 Resource
Conservation and Recovery Act of 1976 dated 21 0ctober1976
.
and O MB pOlfCY Letter
No
.
77-1 Procurement of Products That Contain Recycled Material” dated 2 February
1977
.
!4hen only a fraction of the monaner(s) used to synthesize the polyamide are
recovared the ercent of recovared material WI1l be th e weight p ercent of recovered
rbnomer(s! in tle polyamide
.
Custod ians:
AW - ER
Navy - SH
Air Force - 11
Review activities:
j
~ ~
&
,
2A
,
MI
DLA - CS
,
GS
Prf
~
l
~
gE
~
ttvity:
Agent:
OLA - ES
(Project 9330-0B73)
FSC 9330
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