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151
Case study
Grenade cartridge sheath projectile separation pull testing
Requirement
When manufacturing ammunition, the projectile is set into the case and it is crimped or sealed in place.
152
Case study
PET preforms - repurposing production for COVID-19 test kits
Requirement
One thing which has characterised the fight against COVID-19 has been the ingenuity and innovation shown by manufacturers to repurpose their own mass-production facilities to make essential items. Everything from Personal Protectiv
153
Case study
Toothbrush tester for bristle stiffness and pull-out resistance
Requirement
Toothbrushes are just as important as toothpaste for ensuring effective oral hygiene. As consumers we often underestimate the essential role they play in removing food particles, getting rid of plaque and stimulating the gums.
154
Case study
Shotcrete Early Strength Calibration Studies
Requirement
Multicrete Systems Inc. are specialists in project solutions for the mining and tunneling industries.
155
Case study
Tethered closures testing attachment force
Requirement
As consumers, manufacturers and legislators demand greener packaging and the growing use of recyclable materials is commonplace, attention has turned to the humble plastic closure.
156
Case study
Dosage control torque tests for metered inhalers, auto-injectors and insulin pens
Requirement
It goes without saying that the correct administering and proper dose of medicine is fundamental to ensuring the best chance of patient recovery and wellbeing.
157
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Top-Load
Top-load testing (also known as 'column-crush' and 'axial force resistance') is performed mainly on blow moulded, thermoformed or injection moulded plastic containers.
158
Case study
Torque testing CRC closures with a pneumatically-controlled downward force
Requirement
Child-resistant closures (CRCs) come in many designs and are vital for the prevention of harm from toxic chemicals or pharmaceutical products. The type of closure often depends on the packaging and container contents.
159
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Procedure for tensile testing
While the specifics vary depending on material type and applicable standards, the general procedure includes:
160
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Applications of needle penetration testing
Medical devices
Used to confirm that components such as vial stoppers, syringe seals, and gloves can resist penetration by needles while maintaining their intended function.
161
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Best practices for rotational shear testing
Consistent methodology, accurate equipment and adherence to relevant standards are essential for meaningful results. Recommended practices include:
162
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Introduction to elongation and recovery testing
In industries working with textiles, rubber, elastomers, and flexible plastics, these properties are directly linked to product reli
163
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Understanding flexural strength
Flexural strength (modulus of rupture) refers to a material’s resistance to deformation under load.
164
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How to perform a box crush test
A successful box crush test requires consistent specimen preparation, suitable equipment and precise execution.
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Speak to an expert
Selecting the right trapezoidal tear testing setup requires understanding both the material and the relevant standards.
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Featured case studies
Rubber sealing components - ISO 37 testing of an optimised compound achieved a 12 percent increase in strai
167
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How is a three-point bend test performed?
Test setup and procedure
The test begins with preparing a specimen, often a rectangular bar, from materials such as plastics, composites, wood, or metals.
168
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The process of tension testing
Tension testing follows a defined process to ensure accuracy and repeatability:
169
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Speak to an expert
Compressibility and recovery testing is essential for verifying material performance in sealing, cushioning, and structural applications.
170
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Industry applications
Medical devices - Sterile packaging and protective barriers must resist both penetration and puncture to maintain sterility and patient safety.
Constructi
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TAPPI T 824 standard
Overview of the standard
TAPPI T 824 is the internationally recognised standard that specifies the procedures, equipment requirements, and specimen preparation methods for conducting
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Applications in industry
The Delft tear test is used wherever rubber and thermoplastics need to maintain performance under stress. Common uses include:
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Destructive and non-destructive methods
Testing may be performed destructively or non-destructively depending on the objectives.
174
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Understanding test types
Material testing uses a variety of methods to assess different mechanical properties. Selecting the right test depends on the intended application and relevant standards.
Examples include:
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Standards for box crush testing
ASTM D642-00
This standard specifies methods for determining the compressive resistance of shipping containers, both filled and empty.