ASTM D5635-98
(Test Method)Standard Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens
Standard Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens
SCOPE
1.1 This test method covers the evaluation of the maximum dynamic puncture load that roofing membrane samples can withstand, without allowing the passage of water, when subjected to impact from a rigid object having a sharp edge.
1.2 This laboratory test can be conducted at any desired temperature using membrane samples manufactured in a factory or prepared in a laboratory.
1.3 Roof membrane specimens to which the method is applicable include bituminous built-up, polymer-modified bitumens, vulcanized rubbers, non-vulcanized polymeric, and thermoplastic materials.
1.4 This test method is not applicable to aggregate-surfaced membrane specimens; however, it is applicable to specimens having factory-applied granules.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
Designation: D 5635 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Dynamic Puncture Resistance of Roofing Membrane
1
Specimens
This standard is issued under the fixed designation D 5635; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers the evaluation of the maximum 4.1 The roofing membrane test specimen, set on a thermal
dynamic puncture load that roofing membrane samples can insulation substrate, is subjected to a predetermined dynamic
withstand, without allowing the passage of water, when sub- impact load created by a rigid falling puncture head. The head
jected to impact from a rigid object having a sharp edge. falls through a quarter-circle trajectory from a vertical position
1.2 This laboratory test can be conducted at any desired to horizontal position under gravitational acceleration.
temperature using membrane samples manufactured in a fac- 4.2 The puncture energy is increased from 5 to 50 J (119 to
tory or prepared in a laboratory. 1190 ft·pdl) in 2.5 J (59.4 ft·pdl) increments until puncture of
1.3 Roof membrane specimens to which the method is the membrane specimen occurs or until the maximum energy is
applicable include bituminous built-up, polymer-modified bi- reached.
tumens, vulcanized rubbers, non-vulcanized polymeric, and 4.3 Puncture of the test specimen is assessed by visual
thermoplastic materials. examination and verified by conducting a watertightness test.
1.4 This test method is not applicable to aggregate-surfaced
5. Principle of the Test Method
membrane specimens; however, it is applicable to specimens
5.1 The energy at impact is equated to the potential energy
having factory-applied granules.
1.5 The values stated in SI units are to be regarded as the of the raised puncture head as follows:
standard. The values given in parentheses are for information
E 5 mgH (1)
only.
where:
1.6 This standard does not purport to address all of the
m 5 mass of the puncture head (in kg or lbm),
safety concerns, if any, associated with its use. It is the
2 2
g 5 gravitational acceleration (in m/s or ft/s ), and
responsibility of the user of this standard to establish appro-
H 5 height through which the puncture head falls (in meters
priate safety and health practices and determine the applica-
or feet).
bility of regulatory limitations prior to use.
In this test method, the height is fixed at 0.51 m (1.67 ft).
2
2. Referenced Documents With gravitational acceleration being equal to 9.8 m/s (32
2
ft/s ), the impact energy is, thus, equal to the following:
2.1 ASTM Standards:
C 578 Specification for Rigid, Cellular Polystyrene Thermal E 5 5·m (2)
2
Insulation
where:
D 1079 Terminology Relating to Roofing, Waterproofing,
m 5 kg.
3
and Bituminous Materials
or
3. Terminology
E 5 53.4·m (3)
3.1 Definitions:
where:
3.1.1 For definitions of terms used in this test method, refer
m 5 lbm.
to Terminology D 1079.
Increasing the mass of the puncture head from 1 to 10 kg (2.2
to 22 lbm) in increments of 0.5 kg (1.1 lbm) increases the
1
This test method is under the jurisdiction of ASTM Committee D-8 on Roofing,
puncture energy from 5 to 50 J (119 to 1190 ft·pdl) in
Waterproofing, and Bituminous Materials and is the direct responsibility of
increments of 2.5 J (59.4 ft·pdl).
Subcommittee D08.20 on Roofing Membrane Systems.
Current edition approved Jan. 10, 1998. Published September 1998. Originally
NOTE 1—A counter weight placed on the falling arm opposite to the
published as D 5635–94. Last previous edition D 5635–94.
2
axis of rotation eliminates the need to include the mass of the arm in the
Annual Book of ASTM Standards, Vol 04.06.
3
Annual Book of ASTM Standards, Vol 04.04. determination of the impact energy.
1
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D 5635
6. Significance and Use
6.1 An important factor affecting the performance of mem-
brane roofing systems is their ability to resist dynamic puncture
loads. This test method provides a means to assess dynamic
puncture resistance.
6.2 This test method can be used to compare the dynamic
puncture resistance of a single type of membrane as a function
of a variety of insulation substrates or, conversely, to compare
FIG. 2 Shape and Dimensions of Puncture Head
the resistance of a number of membrane specimens set on a
single type of insulation.
6.3 The effect of temperature on puncture resistance can be
adding weights to a given puncture head to increase its mass
studied by conducting the test under controlled conditions
can be used. The head and additional weights shall constitute a
using such equipment as an envi
...
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