Standard Test Methods for
Impact Resistance of Rigid Poly(Vinyl Chloride) (PVC)
Building Products1

This standard is issued under the fixed designation D 4226; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope *

1.1 These test methods cover the determination of the
the energy required to crack or break rigid poly(vinyl chloride)
(PVC) plastic sheeting and profile flat sections are used in building
products, as well as extruded or molded test samples, under
specified conditions of impact from a freefalling standard
weight striking an impactor with either of two configurations in
contact with the specimen.

1.2 Two test procedures are included:

1.2.1 Procedure A, used to determine minimum impact
energy required to cause failure (hole, crack, split, shatter, or
tear).

1.2.2 Procedure B, used to determine minimum impact
energy required to cause brittle failure.

1.3 The values in inch-pound units are to be regarded as the
standard.
NOTE 1—There is no similar or equivalent ISO standard.

1.4 The text of this standard references notes and footnotes
which provide explanatory material. These notes and footnotes
(excluding, those in tables in figures) shall not be considered as
requirements of this standard.

1.5 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. Specific precautionary statements are given in Section 8.

2. Referenced Documents

2.1 ASTM Standards:
D 374 Test Methods for Thickness of Solid Electrical Insulation2
D 618 Practice for Conditioning Plastics and Electrical
Insulating Materials for Testing3

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