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Test Method: SATRA TM441

Resistance to penetration by needles and other sharp points

February 2011

SCOPE

This method is intended to determine the resistance of footwear, glove and other apparel materials to penetration by needles and similarly sharp points such as snake fangs. This method is mainly applicable to footwear upper and gloving materials, although it is suitable for any flexible sheet material.

PRINCIPLE

The material under test is clamped circumferentially in a jig which is inserted into a tension/compression testing machine. The force required to push a hypodermic needle through the material is recorded.

REFERENCES

EN ISO 7500-1: Verification of static uniaxial testing machines. Tension/compression testing machines. Verification and calibration of the force-measuring system.
SATRA TM12: Density of leather and insole materials.
SATRA TM1: Thickness of leather and insole materials.
SATRA TM27: Thickness of non-leather flexible sheet materials.
SATRA TM28: Mass per unit area.

HISTORY

First issued February 2011.

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

USAGES

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