Test Report No.: 17702074 003
Part I of II
Impact test method for guards
This annex defines tests for guards used on circular saw
benches and building site saws in order to minimize risks
of ejection of parts of tools or of workpieces out of the
working zone.
This annex applies to guards as well as on samples of
guards' materials.
This test method reproduces the hazard of the ejection of
tools parts or of workpieces. The test allows estimation of
the resistance/strength of guards and/or samples of guard
materials against penetration and dislodgement from the
machine by ejected parts from machine or workpiece.
The testing equipment comprises a propulsion device, a
projectile, a support for the test object and a system that
allows to measure or record the impact speed with an
accuracy of ± 5 %.
The projectile shall be a ball of 8 mm diameter made from
steel with the following properties:
a) tensile strength: R
m
= 560 N mm
-2
to 690 N mm
-2
;
b) yield strength: R
0,2
≥ 330 N mm
-2
;