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TURBIDITY CURTAIN SPECIFICATIONS

Type I:
Floatation consists of a series of expanded polyethylene logs, 6” in diameter and 55” long. The logs are enclosed in 22 oz./sq. yd. PVC coated nylon or polyester having 400 lbs. minimum tensile strength. Curtain is permanently attached to the bottom of the floatation unit and weighed down with 1/4” galvanized chain. The curtain material is slit film woven polypropylene having 200 lb. or 300 lb. tensile strength.

Type II:
Floatation and construction are identical to Type I. Curtain material is monofilament woven polypropylene.


Woven Curtain Material Specifications:
Property

Fabric Code
Fabric Structure
Polymer Composition
Weight
Grab Strength
Trap Tear Strength
Burst Strength
Puncture
Elongation
U.V. Resistance
E.O.S.
Test Method

 
 
 
ASTM D-4632
ASTM D-4632
ASTM D-4533
ASTM D-3786
ASTM D-3787 (mod)
ASTM D-4632
ASTM D-4335
CW-02215
Results
AEF 200W
Woven
Polypropylene
4.2 oz/sq. yd.
200 lbs.
90 lbs.
400 psi
90 lbs.
20%
70% (500 hrs)
40
Results

AEF 300W
Woven
Polypropylene
5.8 oz/sq. yd.
300 lbs.
120 lbs.
600 psi
150 lbs.
20%
70% (500 hrs)
40
Results
AEF 650W
Woven
Polypropylene
6.3 oz/sq. yd.
390 x 250 lbs.
115 x 65 lbs.
495 psi
130 lbs.
30%
70% (500 hrs)
70-100
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