 |
PROPERTY
Gauge (nominal) |
TEST METHOD |
TEST VALUE
20 mils |
TEST VALUE
30mils |
TEST VALUE
40mils |
Thickness, minimum
(minimum)
Specific Gravity
(minimum)
Minimum Tensile Properties
(each direction) |
ASTM 01593
Par. 9.1 .3.
ASTM 0792
MTD A
ASTM D882
|
19 mils
1.24 |
28.5 mils
1.24 |
38 mils
1.24 |
1.Breaking Factor
2.Elongation at Break
3.Modulus (Force)
@ 100% Elongation |
MTD A or B
one inch wide
MTD A or B
MTD A or B
|
46 lbs/in width
(2300 psi)
325%
20 lbs/in width
(1000 psi) |
69 lbs/in width
(2300 psi)
325%
30 lbs/in width
(1000 psi) |
92 lbs/ in width
(2300)
350%
36 lbs/ in width
(900 psi) |
Tear Resistance
(minimum average) |
ASTM D1004
Die C |
6 lbs
(300 lbs/in) |
8 lbs
(267 lbs/in) |
10 lbs
(250 lbs/in) |
Low Temperature Impact (F)
(50% pass) |
ASTM D1790
|
-15°F |
-20°F |
-20°F |
Dimensional Stability
(each direction, percent change maximum) |
ASTM D3083
(212°F 15 min.)
|
+/-5% |
+/-5% |
+/-5% |
Water Extraction
(max % wt loss) |
ASTM D3083
(as modified by NSF) |
-0.25% |
-0.25% |
-0.35% |
Volatile Loss
(max % wt loss) |
ASTM D1203
MTD A |
0.9% |
0.7% |
0.6% |
Resistance to Soil Burial
(percent change maximum in original value)
1. Breaking Factor
2. Elongation at Break
3. Modulus @ 100% Elongation |
ASTM D3083
(as modified by NSF)
|
5%
20%
20% |
5%
20%
20% |
5%
20%
20% |
Hydrostatic Resistance
(minimum) |
ASTM 0751
MTDA |
60psi |
82psi |
95psi |
|
FACTORY SEAM REQUIREMENTS
Factory Seaming Method |
------------------------------------- Dielectric Fusion Weld ------------------------------------- |
Bonded Seam Strength
(factory seam breaking factor, ppi width) |
ASTM D3083
(as modified by NSF) |
46 lbs/in width |
80 lbs/in width |
69 lbs/in width |
Peel Adhesion
(minimum) |
ASTM D413
(as modified by NSF) |
20 lbs/in |
20 lbs/in |
20 lbs/in |
Resistance to Soil Burial
(percent change maximum in orginal value) |
ASTM D3083
(as modified by NSF)
|
|
|
|
Bonded Seam Strength
Peel Adhesion |
|
-20%
-20% |
-20%
-20% |
-20%
-20% |
Field Seam Requirements
Field Seaming Method |
------------------------------------- Dielectric Fusion Weld ------------------------------------- |
Bonded Seam Strength
(Seam Breaking Factor) |
ASTM D3083
(as modified by NSF) |
36.8 lbs/in width |
552 lbs/in width |
737 lbs/in width |
| |
|
|
NOTE: Other thickness specifications available upon request |
