Standard Test Method for Evaluating Fenestration Components and Assemblies for Resistance to Impact Energies

SCOPE
1.1 This test method is intended to evaluate the resistance of fenestration components, fenestration assemblies, and impact protection systems to specified impact energies.
1.2 Window, glazed door, and skylight assemblies covered by this test method also include individual components, such as the glazing in-fill.
1.3 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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Historical
Publication Date
09-Jul-1999
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ASTM E2025-99 - Standard Test Method for Evaluating Fenestration Components and Assemblies for Resistance to Impact Energies
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation:E2025–99
Standard Test Method for
Evaluating Fenestration Components and Assemblies for
Resistance to Impact Energies
This standard is issued under the fixed designation E 2025; 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 mullions, muntins and dividers, screens and shading devices,
for example, windows or glazed doors, or both.
1.1 This test method is intended to evaluate the resistance of
3.1.4 glazed panel, n—glazing installed in a framing sys-
fenestration components, fenestration assemblies, and impact
tem.
protection systems to specified impact energies.
3.1.5 impact energy, n—impact energy is expressed as
1.2 Window, glazed door, and skylight assemblies covered
vertical drop height of the pendulum, times its weight, for a
bythistestmethodalsoincludeindividualcomponents,suchas
particular impact event.
the glazing in-fill.
3.1.6 impact energy (cumulative), n—the sum of impact
1.3 This standard does no purport to address all of the
energies from each of the respective impact events for the
safety concerns, if any, associated with its use. It is the
entire applied impact sequence, derived from intentionally
responsibility of the user of this standard to establish appro-
impacting the test specimen more than once; the total impact
priate safety and health practices and determine the applica-
energy either applied to meet a test protocol or observed during
bility of regulatory limitations prior to use.
an impact sequence and associated with a particular level of
2. Referenced Documents damage.
3.1.7 impact protection system, n—moveable (or perma-
2.1 ASTM Standards:
nent) construction that may be applied, attached or locked over
E 631 Terminology of Building Constructions
a fenestration assembly to protect the assembly from impact,
E 1886 Test Method for Performance of Exterior Windows,
for example, shutters.
Curtain Walls, Doors and Storm Shutters Impacted by
3.1.8 impact ram, n—the device that (when released) deliv-
Missile(s) and Exposed to Cyclic Pressure Differentials
ers the impact energy to the test specimen. The impact ram
F 476 Test Methods for Security of Swinging Door Assem-
includes the impact nose.
blies
3.1.9 instrumented impact testing, n—additional apparatus
3. Terminology
attached to the impact ram to provide for the load versus
deformation responses of fenestration components and assem-
3.1 Definitions of Terms Specific to This Standard:
blies under various impact conditions.
3.1.1 assembly support fixture, n—the assembly or structure
3.1.10 plastic glazing sheet material, n—an organic plastic
that supports the test specimen.
sheet specifically developed for glazing.
3.1.2 component (fenestration), n—an individual product
3.1.11 required impact energy, n—the potential energy level
that combines with other components to make up a complete
specified for a single impact event to be applied in the test as
fenestration assembly.
required by the specifying authority.
3.1.3 fenestration assembly, n—aglazedapertureinabuild-
3.1.12 required impact sequence, n—the number of impact
ing composed of a group of parts or components that may
events and the required impact energy for each event to be
include glass or plastic panels or lites, opaque panels, framing,
applied to a specimen in the test and the order in which the
events are to be applied as required by the specifying authority.
This test method is under the jurisdiction of ASTM Committee E-06 on
3.1.13 required cumulative energy, n—the sum of the im-
Performance of Buildings and is the direct responsibility of Subcommittee E06.51
pact energy times the number of each such impact events for
on
the entire required impact sequence to be applied to a specimen
Current edition approved July 10, 1999. Published October 1999.
Annual Book of ASTM Standards, Vol 04.11. in the test as required by the specifying authority.
Annual Book of ASTM Standards, Vol 15.07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
E2025–99
3.1.14 test specimen, n—the fenestration assembly, impact defines the allowable drop height for that system. To prevent
protection system or glazing in-fill, which is subject to the impact ram wobble, it is necessary to use two pairs of cables of
impact energies delivered by the impact ram. sufficient separation that, hanging unrestrained, are parallel to
each other when viewed perpendicular to the long axis of the
4. Summary of Test Method
impact ram.
6.1.4 Use a quick release mechanism that is capable of
4.1 This test method consists of installing a fenestration
holding the impact ram and releasing it in uniform manner
component, fenestration assembly, or impact protection system
without imparting any forward motion or acceleration. Provide
in a wall assembly and impacting the test specimen.
a means to assure that the impact ram does not unintentionally
4.2 The impact is applied by an impact ram supported by a
strike the specimen after the initial impact, that is, rebound and
pendulum system and released from a specified height.
strike the specimen again.
5. Significance and Use
6.1.5 The nose of the impact ram shall be of any material,
shape, size, or surface as specified and within the weight limits
5.1 This test method is intended for determining the ability
for the impact device. Standardize the impact nose specified
of a fenestration component, fenestration assembly, or impact
and referenced for particular tests. Impact nose substitutions
protection system to resist specified impact energies.
shall meet the criteria of hardness, shape, and composition
5.2 The test apparatus, referenced herein, is capable of
specified for the impact nose by the test protocol. Adjust the
applying a variety of impacts to a specimen as the impactor
impact ram length for the specified impact nose to comply with
head may be fabricated into a variety of shapes and from
impact device system weight limits.
materials having different degrees of hardness. The user is able
to simulate a specific type of impact and the impact energy
NOTE 2—Variations in impact nose specifications or composition may
with this apparatus. affect test results.
5.3 There is a need to correlate the damage to fenestration
6.1.5.1 Unless otherwise specified, the impact nose shall be
assemblies from the impacts in question with the impacts
2.5 6 0.2 in. (63 mm 6 5 mm) in diameter and the radial
delivered by the test apparatus in order for the test results to be
tolerance shall be within 0.125 in. (3.2 mm). The nose shall be
properly interpreted. Due to the nature of the test apparatus,
made from cast epoxy-polyamide resin with a measured Shore
care must be taken when interpreting the results of a specific
A durometer hardness of 80 (6 5). No chips or surface
test to actual performance in the field. The impact energies
blemishes shall be present on the impact nose.
involvedinapendulumimpactcannotbedirectlytransferredto
6.2 An assembly support fixture shall supply the rigidity
impact energies applied by other devices, for example, projec-
normally provided to an assembly in a building by the ceiling,
tiles; therefore, the performance of a specimen to the impacts
floor, and walls. The support fixture for the specimen shall
applied by this test method are not directly transferable to
consist of a vertical wall section constructed from nominal
performance in actual use. The application of impact energies
steel or 2 3 4-in. wood studs, 16 in. (406 mm) on center, with
to a specimen, as applied in this test method, however, does
a rough opening of sufficient size to support the test specimen.
provide valuable information regarding the ability of the
Install the specimen into the rough opening in accordance with
specimen to resist damage when impacted.
the manufacturer specifications with clearances between the
specimen and rough opening no greater than 0.75 in. (18 mm)
NOTE 1—Use Test Method E 1886 for determining the performance of
fenestration components subjected to impacts from windborne debris in a on all sides of the specimen. Cover both sides of the vertical
windstorm environment.
wall section with ⁄2 in. (12.7 mm) exterior grade plywood.The
assembly shall conform to the wall assembly described in Test
5.4 When using this test method to compare the perfor-
Methods F 476. The limiting deflection of the wall shall be
mance of products the same impact nose, impact device mass
L/175 (based on the anticipated loads).
and impact speed must be applied to each product tested.
6.3 Standard Test Frame—To test glazed panels, design the
6. Apparatus standard test frame to support a rectangular specimen in a
vertical plane and expose it to impact energies. Construct the
6.1 Impact Device—A variable mass moving carriage (im-
frame of 2-in. (50-mm) steel angles, at least ⁄4-in. (6.4-mm)
pact ram), supported by a suspension system of four cables,
thick, welded at all four corners to form a rigid assembly.
shall be used to supply the specified level of impact energy.
Support the assembly is with a support fixture similar to that
6.1.1 The impact device shall be a pendulum system with an
described in 6.2. Line that part of the test frame that comes in
impact ram capable of delivering the specified horizontal
contact with the glazed panel with hardwood stripping. The
impact energy.
3 3
wood stripping in turn is to be covered with ⁄8 3 ⁄4 in. (9.5 3
6.1.2 The mass of the (movable) suspension system shall
19 mm) neoprene stripping, which shall have a Shore A
notexceed5 %ofthemassoftheimpactram,includingimpact
durometer hardness of 30 to 50 and a compressive strength of
ram nose, and shall not be included as part of the specified
4–10 lb/lineal in. (0.7–1.7 kN/m). The neoprene stripping shall
impact mass.
be in full contact with all four edges of the specimen.
6.1.3 Care shall be taken to prevent impact ram wobble and
to assure that the i
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