The purpose of this test method is to test the strength of a package of accessories at the end of a shoelace. This method is applicable to all types of shoelaces and shoelace end packages, and can also be used for accessories with similar models

1 Scope

The purpose of this test method is to test the strength of a package of accessories at the end of a shoelace. This method is applicable to all types of shoelaces and shoelace end packages, and can also be used for accessories with similar models

2 Principle

A tensile testing machine is used to measure the force of pulling off the wrap at the end of a shoelace

3 reference data

BS EN 100002-2: 1992 - validation of force measuring systems for tensile testing machines

4 equipment and materials

4.1 a tensile testing machine:

4.1.1 one clamp separation rate: 100 ± 10mm/min.

4.1.2 force measurement capacity up to 500N with an accuracy of - 2% as specified in BS EN 10002-2, class 2

4.1.3 a method of recording forces during testing, either continuously or maximally

SATRA's reference standard STM 466 provides a suitable machine

4.2 a clamp is used to fix the wrapping at the end of the test shoelace, which is composed of a flat metal plate with a thickness of about 3mm, and there is a V-shaped incision on it

■ vertical edge

The width of the top of the V-shaped mouth is about 3 mm

A length of about 35 mm

SATRA can provide a suitable fixture