DD G 451D 联邦规范 浮法玻璃或平板图(平面,用于玻璃镜子和其他用途)(1977年4月25日)[根据ASTM C 1036标准]

ID:41828

大小:1.46 MB

页数:40页

时间:2023-03-16

金币:20

上传者:战必胜
-.—
DD-G-451D
.
Fed. Spec. DD+-451C
J8XIUary1S,
1968
I’EDESULLSPECIFICATION
GLASS, FLOAT OR PMT’E, S~~EET8FIGU~D
(FLAT, FOR GLAZING,
PIIRRORSAND OTHER USES)
This specification was approved by the Commissioner~
Federal Supply
Semite,
General Semites J+dministration~
for the
use of all Federal
agencies.
1. SCOPF MID CL;SZIFICATIO!:
1.1 Scope.
This specification covers the requirements for cut
Sizes Of flat
glass for qlazxngl
mirror6 and other uses.
1.2 Classlflcation.
Glass shall be of the following types? classes~ qualltlesf
styles, and forr.s,as speclfle~ (see 6=2):
Type I-
I’rimaryglass (float or plate
or sheet).
Class
1 -
Transparent.
Quallt}’G: -
!:~rrorselect.
cj2 -
Mlrxc:.
53 -
Giazln$ select.
a4 -
Glaz2ng A.
r -
f:la7~nc 1-,.
‘+ J
------ .-
q6 -
Greenhouse.
Class 2 -
lieatabsorbing and light reducing.
Quality q3 - Glazlng select.
q4 - Glazlng A.
qs -
Glazing B.
Style A -
l]lgherlight transmission.
D -
Lower light transmisslono
class 3 -
Uqht reducing~ tinted.
Quallty $3 -
Glazing select.
qc -
Glazlng A.
qs
Glazing D.
Type 11 -
Rolled, flat.
Class 1 -
Translucent.
2 -
Ileatabsorbing.
Style A -
Iligherlight transmission.
b -
Lower light transmission.
Class 3 -
Light reducing, tinted.
F’
=-<
PSC 5620
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