This
appendix lists the clarifications and details of the testing methods used in
the PGI specification. In some cases multiple test procedures exist within test
methods and testing choices are required. This appendix makes note of the test
criteria that was used to compile these specifications.
General When both US and metric values are shown the value for acceptance is the US value.
Metric
values are conversions and may contain rounding errors.
Test Method Clarification and
Details
ASTM D751
Test
Methods for Coated Fabrics
o For
Hydrostatic Burst use Section 33, Procedure A, “Pressure Application by Mullen
Type Hydrostatic Tester”
o Units of pressure
in pounds per square inch (psi) or kiloPascals (kPa)
ASTM D882
Tensile
Properties of Thin Plastic Sheeting
o Use Method
A
o D882
method may be used for PVC film up to 60 mil (1.5mm) thick
o Units are
in pounds of force per inch of width (lbs/in)
o Metric
units are in kiloNewtons per meter of width (kN/m), or Newtons per millimeter
of width (N/mm) which are equivalent units
o Factory
Seam Shear Testing
-
Use ASTM D882 Method A
-
ASTM D882 may be used for thicknesses greater than 1.0 mm
(40 mil)
for seam
testing
-
Use 25.4 mm wide (1”) specimens
-
Use grip separation of 51 mm (2 in) plus the seam width
-
Crosshead speed of 510 mm/min (20 in/min)
o Factory
Seam Peel Testing
-
Use ASTM D882 Method A
-
Use 25.4 mm wide (1”) specimens
-
Position grips 13 mm (1/2”) on either side of seam
-
Crosshead speed of 51 mm/min (2 in/min)
ASTM D1004
Initial
Tear Resistance of Plastic Film and Sheeting
o Units are
in pounds of force to initiate tear in the specially die-cut specimen (lbs) or
in Newtons of force (N)
ASTM D1203
Volatile
Loss from Plastics Using Activated Carbon Methods
o Use method
A
ASTM D1204
Linear
Dimensional Changes of Thermoplastic Film at Elevated Temp.
o Test
specimens at 100C for 15 minutes
o Measure
percent change in lineal dimensions
ASTM D1239
Resistance of
Plastic Films to Extraction by Chemicals
-
ASTM D1239 may be used for thicknesses greater than 1.0 mm
(40 mil)
o Test
specimens in 50°
C (122°
F) water for twenty-four hours
o Measure
percent change in weight
ASTM D1790
Brittleness
Temperature of Plastic Sheeting by Impact
o
50% of specimens must pass at specified temperature
ASTM D 2124 For plasticizer extraction, followed by GC or GCMS for identification and molecular weight determination.
ASTM D5199
Measuring
the Nominal Thickness of Geosynthetics
o US units
of thousandths of an inch (0.001 inches = 1 mil)
o Metric
unit of millimeters of thickness (mm)
ASTM G160
Evaluating
Microbial Susceptibility of Nonmetallic Materials by Soil Burial
o Bury
sample in prepared soil for 30 days
o Perform
test on actual liner sheet samples
o Measure
maximum change in properties as shown in specification