GMW 14093-2011 塑料部件的耐冲击性.pdf

WORLDWIDE ENGINEERING Test Procedure GMW14093 STANDARDS Determination of Impact Resistance of Plastic Components The impact hammer shall have the following 1 Scope dimensions: Note: Nothing in this standard supercedes  Diameter  50 ± 1 mm applicable laws and regulations.  Nose radius 25 ± 1 m Note: In the event of conflict between the English  Mass 510 ± 1 g and domestic language, the English language shall 3.2.3 Apparatus C – Steel Ball (See Figure 3). A take precedence. steel ball having a weight of 510 ± 1 g, which drops 1.1 Purpose. The object of this test procedure is to from a predetermined height so as to produce the determine the impact resistance of plastic specified impact energy in free fall onto the test components under specified conditions. piece. 1.2 Foreword. Not applicable. 3.2.3.1 Brazil Only. A steel ball having a weight of 1.3 Applicability. This test procedure shall be 500 ± 5 g is also permitted. used for plastic components, which are likely to be 3.2.4 Low temperature cabinet capable of subjected to impact stresses. maintaining -30 ± 3 °C. 3.3 Test Vehicle/Test Piece. 2 References