ASTM D2444-99用落锤法测定热塑性塑料管和配件耐冲击性的试验方法.pdf

Designation: D 2444 – 99 An American National Standard
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
Determination of the Impact Resistance of Thermoplastic
Pipe and Fittings by Means of a Tup (Falling Weight)1
This standard is issued under the fixed designation D 2444; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope As the basis for establishing impact test requirements
This test method covers the determination of the impact in product standards,
resistance of thermoplastic pipe and fittings under specified To measure the effect of changes in materials or
conditions of impact by means of a tup (falling weight). Three processing, and
interchangeable striking noses are used on the tup, differing in To measure the effect of the environment.
geometrical configuration. Two specimen holders are de- 4. Apparatus
scribed.
The values stated in inch-pound units a