Search results
1076
Case study
Adjustable spectacles torque test
Customised engineering example
Adlens manufacture adaptive spectacle lenses, where the optical power is adjusted by a side dial which is then removed.
1077
[Page extract]
Standards for tear resistance testing
While the core principle of wing tear testing remains the same, each standard specifies unique specimen shapes, notch sizes and test speeds. Adhering to these requirements ensures results are valid and comparable.
1078
Case study
Insulation film stiffness testing
Customised engineering example
Familiar with three-point bending to test flexural strength properties?
1079
[Page extract]
ISO 8033
ISO 8033 specifies methods for the determination of the adhesion between lining and reinforcement, between cover and reinforcement, between reinforcement layers, between cover and outer lamination (thin layer of material outside the cover for protection
1080
Case study
Système d'essai de mesure de couple pour commandes de fenêtres et de toit ouvrant
Exigence
Le client a demandé un système portable qui lui permettrait de tester rapidement et facilement le couple requis pour ouvrir et fermer les vitres d'une voiture.
1081
Event
Needle Sharpness & Puncture Resistance Testing
Hypodermic needles are tested to determine how their design influences the ease of insertion into the skin, patient pain and skin trauma.
1082
Event
Needle Sharpness & Puncture Resistance Testing
Hypodermic needles are tested to determine how their design influences the ease of insertion into the skin in order to prevent patient pain and skin trauma.
1083
[Page extract]
Standards for extrusion testing
Although there are fewer dedicated standards for food extrusion than for plastics or metals, recognised guidelines help ensure repeatability and comparability. Examples include:
1084
[Page extract]
Challenges and best practices in peel testing
Common challenges
Material variability in thickness, surface treatment, or adhesive application.
Inconsistent specimen preparation.
Operator error from misalignment or incorrect grip tension.
Best pra
1085
Event
Essentials of Adhesion (Peel) Testing
Across many households and industries, consumers have developed a strong preference for and confidence in ‘Duct Tape’ for all types of uses and applications. This is mainly due to the adhesion strength.
1086
[Page extract]
ASTM D2061
No one test determines the suitability of a zipper for a specific end use. Since the tests are inter-related more than one may be needed for a complete evaluation.
1087
Case study
DVD removal force test
Requirement
The customer, a leading supplier of boxed DVD’s, had experienced a wide variation in the amount of force required to remove the DVD from the central spigot of the case.
1088
[Page extract]
ASTM D6742 / D6742M
ASTM D6742 is the standard test method for tensile and compression testing of filled-hole polymer matrix composite laminates. It provides instructions for modifying open-hole tension and compression test methods to determine filled-hole tensile and com
1089
[Page extract]
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
1090
[Page extract]
Testing equipment and procedures
Compression testers with parallel platens apply controlled loads at specified rates.
1091
Case study
Peel test of semi-rigid packaging for medical device
Customised engineering example
Our client needed to test the peeling quality of a Tyvek® paper lid used to seal a sterile, semi-rigid thermoformed plastic tray containing pre-filled syringes.
1092
Case study
Injection moulded assembly integrity
Customised engineering example
Plastic injection-moulded subassemblies are often clipped or welded together, and the integrity of the whole must be tested at several points.
1093
Case study
Syringe Luer lock attachment removal
Customised engineering example
Our client is a biomedical company who manufacture HA medical solutions supplied in glass syringes with compression-fit polycarbonate luer locks.
1094
Case study
Test d'écrasement des bords (ECT) du carton ondulé
Exigence Introduction Au cours des semaines de confinement liées au COVID-19, il y a eu une augmentation des livraisons à domicile, même les géants du commerce électronique ont du mal à répondre à la demande et à embaucher des flottes
1095
Case study
Train sliding door slam force tester
Requirement
A portable device was specified for testing the force required to activate the inbuilt safety device when automatic doors close on trains.
1096
[Page extract]
Compression testing and its applications
Compression testing measures how a material behaves when subjected to forces that reduce its size.
1097
[Page extract]
ASTM F36-15
The ASTM F36 test method covers the determination of the short-time compressibility and recovery at room temperature of sheet-gasket materials, form-in-place gaskets, and in certain cases, gaskets cut from sheets.
1098
[Page extract]
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.
1099
[Page extract]
ISO 178
ISO 178 is a test method for the determination of flexural properties of rigid and semi-rigid plastics. These properties include flexural modulus and flexural strength.
1100
Case study
Synthetic sports surface tuft binding
Customised engineering example
Test method standard BS ISO 4919 applies to the tuft withdrawal force of carpets.