The toe portion of safety / protective footwear shall be sufficiently rigid so as not to get pressed down beyond a specified limit when a heavy block falls down on it, thus preventing crushing of or injury to the toe of the user.
The toes of such footwear are generally reinforced with a steel toe-cap to provide rigidity to them. Whether these toe-caps are sufficient robust so as to fulfill their desired function is ascertained by subjecting the toe-cap assembled in a cut-out shoe to an impact by a falling weight. The toe-cap shall not press down beyond a specified limit during the impact.
IS 15298 (Part 1) â€“ 2002 : Safety, Protective, and Occupational Footwear for Professional Use
ISO 8782 (Part 1) â€“ 1998 : Requirements and Test Methods
Clause 5.3: Determination of Impact Resistance
EN 344 - 1993 : Requirements and Test Methods for Safety, Protective and occupational Footwear for Professional Use.
Height of fall - 1020 +- 10 mm
Mass of Falling Block - 10.0 +- 0.1 kg and 20.0 +- 0.2 kg
Impact Energy - 100 +- 2 Joule and 200 +- 4 Joule
Striker - Wedge shaped having an included angle of 90o, length of at least 60 mm, edge rounded to 3 mm radius, hardness 50 to 60 HRC
Clamping Block - 150 x 150 x 19 mm, hardness at least 60 HRC