Test Method: SATRA TM5

Stitch-tear strength

May 2000

SCOPE

This test method is intended to determine the ability of a material to hold stitches or clenched fastenings. The method is applicable to rigid and semi-rigid sheet materials, to rubbers and plastics, and to welts used in footwear manufacture.

PRINCIPLE

A pair of holes is drilled through the material and a loop of wire of specified dimensions is threaded through them. The material is then fitted in a special clamp on a tensile testing machine and the force required to pull the wire through the material is measured. This force is then divided by the thickness of the material to give the stitch-tear strength of the material.

REFERENCES

BS 5131: Section 2.7: 1980 (1992) - The preparation of test pieces from soling materials for physical testing.
BS EN 10002-2: 1992 - Verification of the force measuring system of the tensile testing machine.

HISTORY

First issued December 1966. Revised July 1980, May 1992, May 2000 incorporating TM71.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

• Members: £75
• Non-members: £215

TYPE

• Strength

USAGES

• Insoles
• Solings - leather