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Case Studies / Surgical Rubber Glove Tensile and Puncture Testing

Surgical Rubber Glove Tensile and Puncture Testing

Solution

Software-controlled tensile and compression testing system with extended test space.
Pneumatic planar vise grips for consistent specimen handling.
Puncture resistance jig with cone-point stylus for chemical-resistant glove evaluation.

Benefits

Software automation ensures tests are conducted precisely according to standard methods.
Quick-change fixtures enhance efficiency and repeatability.
Automatic calculation and reporting of relevant material properties.
Accurate and consistent output, tailored specifically for your client.

Medical and cleanroom gloves must possess high tensile strength, flexibility, and puncture resistance to deliver a high level of safety and comfort to the wearer. Testing is done on advanced tensile and puncture testing systems per ASTM D3577, ASTM D3578, ASTM D412, and ISO 374-4 standards. The dumbbell-shaped specimens are pulled at controlled pulling speeds to determine the tensile strength, elongation, and yield behavior for the specimens; the puncture test, which determines chemical degradation and resistance performance. The high-elongation Presto Stantest benchtop UTM with software-controlled automation, pneumatic grips, and a puncture fixture allows the extension of reachable testing applications. The system offers repeatable testing conditions, standardized reporting for glove manufacturers, and accurate calculations.

Requirement

Tensile strength and elasticity are essential for medical and cleanroom gloves in terms of safety and comfort. Tensile and elongation properties are used to predict the potential to withstand stresses involved in use without ripping and with sufficient flexibility and comfort.

Standards ASTM D3577 and ISO 11193-1 are applied to surgical gloves, and ASTM D3578 to examination gloves for latex, nitrile, and vinyl gloves. These standards all incorporate the ASTM D412 test method for tensile testing, including important characteristics such as tensile strength, yield strength, and ultimate elongation.

ISO 374-4 tests chemical-resistant gloves for the force needed to puncture glove material, both pre- and post-treatment. This test guarantees that gloves remain functional in risky circumstances and measures degradation as a percentage change from treated (exposed) test specimens.

Solution
Tensile testing is conducted using dumbbell-shaped specimens cut to standard dimensions. Specimens are extended at controlled speeds (typically 500–1000 mm/min) until failure, recording tensile strength (MPa) and elongation. Aging tests accelerate exposure to the end of the product's shelf life to establish storage and use-by dates. Minimum acceptable tensile strength ranges from 14 to 24 MPa and elongation of 400-750% for comfort and wearability.

Puncture tests involve driving a stylus with a pointy tip through the glove material at 100 mm/min. Testing treated and untreated samples offers quantitative measurements of chemical degradation, revealing potential softening or stiffening of the glove material.

Presto Stantest's Zeus Ultimo 3.0 benchtop UTM provides the flexibility. It’s 500 mm travel suits highly stretchy materials, while its 500 N loading capacity suits puncture and elongation. Pneumatic planar grips firmly hold specimens for elongation, and the integrated software calculates tensile, yield, elongation, and puncture test parameters to provide standardized and substantial test reports.

Test Equipment

Zeus Ultimo 3.0 high-elongation tensile and compression UTM
500 N cell
Pneumatic planar grips MEC94
Puncture resistance jig with cone-point stylus
Wedge or planar grips with rubber faces for raw material elongation testing

Test Standards

ASTM D3577: Rubber Surgical Gloves
ASTM D3578: Rubber Examination Gloves
ASTM D412-16: Tension - Vulcanised Rubber and Thermoplastic Elastomers
ISO 374-4: Resistance to Chemical Degradation Protective Gloves Against Chemicals and Microorganisms