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Equipment and procedures
SCT testing equipment and tools
Accurate SCT testing requires equipment that can apply controlled and repeatable loads:
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Methods for lap shear testing
Single lap shear test procedure
In a single lap shear test, two specimens are bonded with an adhesive in an overlapping configuration.
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Introduction to penetration and puncture resistance testing
Penetration and puncture resistance testing are essential for evaluating how well a material can withstand force from sharp, pointed, or blunt objects.
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Introduction to rotational shear testing
Rotational shear testing is a specialised method used to measure the torque or twisting force required to deform a material or component.
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Mechanical properties and accuracy considerations
Tensile testing via the strip method reveals mechanical properties that determine how fabrics perform in use.
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Advantages of High Ultimate Tensile Strength
To calculate ultimate tensile strength in practice, a specimen is mounted in a tensile testing machine and stretched at a constant rate until it breaks. The machine measures both force and elongation, recording data throughout the test.
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Equipment and safety precautions
To ensure accurate and safe testing, the following components are required:
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Types of calculations handled
Mecmesin’s VectorPro software supports a wide range of test calculations, automatically derived from mechanical testing data:
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What is the trapezoidal tear test?
The trapezoidal tear test is a mechanical method used to determine the tear strength of flexible sheet materials.
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Flat crush of corrugated medium (CMT test)
The flat crush test, also known as the Concora Medium Test (CMT), measures the maximum force a corrugated medium can withstand before flute collapse. In CMT testing, the medium is first formed into flutes using a laboratory fluter before testing.
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Understanding reverse ratchet torque
Reverse ratchet torque testing is an essential process for verifying the safety and reliability of child-resistant closures (CRCs).
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Industry-specific test standards
ISO 9895 - packaging materials
ISO 9895 specifies the method for determining the compressive strength of paper and b
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Application of standards in puncture testing
Standardised methods ensure test consistency and reliability across laboratories and production sites.
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Loop tack test procedure
Sample preparation
Cut adhesive strips to the required length and width stated in the chosen standard. Condition the samples at the specified temperature and humidity before testing.
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Relevant textile test standards
The strip method is defined in several national and international standards, each tailored to specific fabric types and performance requirements:
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Case studies and real-world examples
Food sachet packaging
In a recent study, our equipment was used to test the burst strength of multilayer foil sachets used for single-serve food products.
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Standard methods and procedures
T-peel testing is governed by recognised standards to ensure consistency and repeatability of results. The most common are:
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BS EN 843-1
EN843-1 describes methods for determining the nominal flexural strength of advanced monolithic technical ceramic materials at ambient temperature.
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FINAT FTM3
This test method allows the end user to determine the force required to separate the release backing from the pressure sensitive adhesive coated face material.
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ASTM D6243-09
This test method covers a procedure for determining the internal shear resistance of a Geosynthetic Clay Liner (GCL) or the interface shear resistance between the GCL and an adjacent material under a constant rate of displacement or constant stress.
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ASTM D5934-02
ASTM D5934 specifies the use of controlled rate of loading mechanical instrumentation on rectangular plastic bars molded directly or cut from sheets, plates, or molded shapes via three-point loading bending techniques to obtain material properties such
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ISO 1924-3
Specifies a method for measuring the tensile strength, strain at break, tensile energy absorption and tensile stiffness, using a testing machine operating with a constant rate of elongation (100 mm/min).
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ISO 5079
Describes method and conditions of test for the determination of the breaking force and elongation at break of individual fibres in the conditioned or wet state. The test is restricted to the use of constant-rate-of-extension testing apparatus.
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ISO 13935-1
ISO 13935-1:2014 specifies a procedure to determine the seam maximum force of sewn seams when the force is applied perpendicularly to the seam. ISO 13935-1:2014 specifies the method known as the strip test.