USED
IN
LIEU
OF
MIL~A~174'l2(NA
VY)
12
February 1953 '
INTERIM
MILITARY SPECIFICATION
ASBESTOS
SHEET,
COMPRESSED
(GASKET
MATERIAL)
This limited coordination M1litary specification
bas
been
prepared
by
the Bureau
of
Ships based upon
currently available technical information, but
bas
not been approved for promulgation
as
a revision
of
MlU~
tary
Specification MII..,A-1'l472.
It
is
subject
to
modification. However, pending
its
promulgation
as
a
co-
ordinated Military specificatian,
I.t
may be used for
procurement~
L,,,~fOPE
,
1.1
This
speciflcatidn covers symbol
2150
cO,m..,
pressed
asbestos sheet basket
material
used
as
a
gasket joint sealing
material
for ,steam, hot and .
cold water
or
brine,
air
and gases, and oils.
.2.
APPLICABLE
DOCUMENTS
2.1
The
follOWing
documents, of the
issue
in
effect on date of invitation for bids
or,
r~uest
for
proposal, form a par,t
of
this
specification to the
~~nt specified herein: :
STANDARDS
FEDEP.AL
FED-STD-601 - Rubber, Sampl.ing and
Testing., '
,MILrr.ARY
MIL~STD-105
-Sampling
li'rOcedures,
and Tables for Inspec- ,
tion
by
Attributes.
(Copies
of
specifications,
s~ds,
drawings
and publications required by suppUers in
c9DJ1ec~,
tion
wl'tb
specific procgrement functions should'be
obtained from the procuring activity
or
as
directed
-by-the-contracttng
off1ar.)
,._-,-
2. 2 Other publications. - The following
docu~
ment forms a
part
of
this
specification to the
ex-
tent
specifIed
herein.
'Unless otherwise indicated,
the
issue in effect on date
pf
invitat~n
for bids
or
request for propos:il
shall
apply.
OFFICIAL
CLASSIFICATION COMMITTEE
Uniform Freight Classification Rules. ,
(Application·for copies should be addressed to
the Official Classificat1oitCozimitttee,
1Pllrk'
,
Avenue
at
33rd Street,
New
York 16, ,N.
y:).
S. REQUIREMENTS
3.
1 Qualification. -
The
compressed
asbest<1S
sheet
furnished under this specification shall
be
a
proda.ct which bas
beeri
tested, and
paSs~
the
quall-'
fication
tests
specified,here1ii~
and
bas
been
listed'
on
or
approved for listing on the aPPliCable qualified
prodjlcts
list.
3.2
Material. -
T~e
compressed a$bestOB sheet
shall
~
mads'of
asbes~
fiber, natural or' 8yitthetii::.
rubber,
or
a mixture of
the
tWo,
and 'suitable
mineral
filler~.
3.
2.
1 Asbestos fiber. - The asbestos fiber shall
be chrysotUe and shaU contain
ootless
tba!113
per-'
cent chemica,lly
~mbinedwater
(~ee
4.
5.1).,
" ,
3.3
Construction.,;'
rJ;le
comFe\JSed !iSbestoB,'
sheet
shall
be
either
cross-laminated
or
not. "
3.4
Agbestos fiber and rubber content.-The
compressed asbestos
aMet
IilhaU
cont~.l.Il
ilot
le~
,
than
70 percent by weight, 'of' aSbestOs fiber,
an~
not
'
less
than
10 percent by weight, of rubber
(see
4.5.1).
3.5
Loss of weight on lieatiilg. - The
l.Qs3
tD
w~ight
on heating
at
900" to
9251,le1tlil
es
Centigrade (0
C,)
,
shall
not
be
more
than
35
percent
(see
4.6.2).
, '
3. 6 Thickness
and weight. -
'J.1te
thickness
and
weight of the
~b.ed
coIllpr.essed
asbes~
sheet,
shall
be
as
shOwn
in fable I
as
spedfied
(see
6.2).---:---
Table I - Thickness and weight
-,
ThickneSs
Weilht,'
min1niU.m
Inch
Pounds
per
sqUare
y.u-'d
--
1/64
0.8
1/32
2.0'
1/16
4.0
3/32-'
6.0
1/8
8.0
3/16
12.0
1/4
16.0
3.6.1
Thickness tolerances. - The permISsible
tolerances in thickness
shall
be
as
shawn in table II.
I
FSC
5330 I
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