For testing the mechanical strength and the impact strength by pendulum test and by drop test, according to IEC60598 Fig 21,IEC60950 clause 4.2.5 and figure 4A

For testing and gauging the scale of spring hammer calibration devices in accordance with IEC60068-2-75/1997-08 Annex B, Figure B.5 and B.6

ZLT-SE, conform to IEC60068-2-75 table 1 and table 2.

ZLT-GQ, To determine the mechanical strength and the impact strength by pendulum test resp, by drop test. Material: steel ball hardened.