A-A-55063A
3.1.1 Figure. Figure 1 is furnished for informational purposes only. To the extent of any
inconsistencies between the written document and the figure, the written document shall govern.
3.2 Materials.
3.2.1 Base cloth. The base cloth shall have the physical properties provided in Table I when
tested in accordance with the methods provided therein.
TABLE I. Material requirements
Characteristic
Requirement
Test Method
Fabric Weight, (oz/sq.yd)
2.5 - 3.1
ASTM D 3776 Option C
Fiber Content
100% Polyester
AATCC 20
Yarn
Spun Staple
Visual
Fabric Count,( inch) minimum
Warp
52
ASTM D 3775
Fill
30
3.2.1.1 Coated cloth. The coating compound (see 3.2.1.1.1) shall be applied to both sides of
the base cloth. The coated cloth shall be dusted with powder (see 3.2.1.2). The coated cloth
shall be fully vulcanized and shall meet the performance requirements of Table II when tested by
the methods specified (see 7.4).
TABLE II. Coated cloth performance requirements
Characteristic
Requirement
Test Method
Overall weight (oz/sq yd)
13.0 - 15.1 ASTM D3776 Option C
Breaking Strength, (minimum)
Warp
155
ASTM D 5034
Filling
130
ASTM D 5034
Coating Adhesion , 1bs/ 2-inch width
(minimum)
6.0
ASTM D 751 1/
Blocking (maximum)
No. 1
ASTM D 751 2/
Hydrostatic resistance
Initial
3/
ASTM D 751 4/
After abrasion
5/
ASTM D 751 6/
1/ A pulling clamp speed of 5 mm/sec (12 in./ min) shall be used. The adhesion shall be
the average of the five (5) highest peaks of force Three (3) specimens shall be tested.
cyanoacrylate adhesive shall be used.
2/ The test shall be performed at a temperature of 180 (± 2°F) for 30 minutes. Evaluate the
resistance of the specimen to blocking by the scale given below:
1--No Blocking. Cloth surfaces are free and separate without any evidence of cohesion
or adhesion.
2--Trace Blocking. Cloth surfaces show slight cohesion or adhesion.
3--Slight Blocking. Cloth surfaces must be lightly peeled to separate.
2
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