MIL-D-87030B(SH)
3.
REQUIREMENTS
3.1 First article. When specified in the contract or purchase order, a
sample shall be subjected to first article inspection (see 4.3 and 6.3).
3.2 Materials.
3.2.1 Chloroprene foam. The chloroprene foam for the suit shall be
pigmented black. Gas expanded chlorinated cellular rubber, having a closed
cell structure shall conform to classification RE-41-EI of ASTM D 1056 and
other requirements specified herein when tested as specified in 4.6.1. The
chloroprene foam shall have a minimum density of 10 and a maximum density of
20 pounds per cubic foot (lb/ft3). The foam thicknesses used for the suit
shall be 1/4 ± 1/16 inch thick with no skin on both sides; 1/4 ± 1/16 inch
thick with skin on one side only; 1/8 ± 1/16 inch with no skin on both sides.
The foam material shall conform to table I when tested as specified in 4.6.1.
TABLE I.
Foam .
Requirement
Characteristic
25 percent ❑ aximum
Compression set under constant
deflection
2.0 lb/in2 minimum
Compression deflection
7.0 lb/in2 maximum
6.0 percent maximum
Water absorption
5.0 percent ❑ aximum
Accelerated aging shrinkage
in each direction
135 lb/in2 maximum
Tensile stress
(500 percent elongation)
3.2.2 Knitted stretch cloth. The stretch cloth shall be circular knit
from 100 percent continuous filament nylon yarn and conform to the physical
requirements of table II when tested as specified in 4.6.1.
Knitted stretch cloth.
TABLE II.
Elongation
Yarn per inch
percent
Weight, ounce
Knitted
(minimum)
color
courses
per sq yd
wales
wales
courses
stitch
Black (outside)
150 min 225 min
36 by 38
Jersey
Blue (inside)
225 max 400 max
3.2.2.1 Colorfastness. The knitted cloth shall show fastness to launder-
ing, crocking and perspiration equal to or better than the standard sample.
When no standard sample is available the finished material shall show a minimum
of good fastness to laundering, perspiration and a Munsell Value for dry and
wet crocking not lower than 8.5. Testing shall be as specified in 4.6.1.
3
.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business