Search results
1076
[Page extract]
ASTM D412-16
ASTM D412 is a test standard for testing the tensile stress-strain properties of thermoset rubbers and thermoplastic elastomers. The standard is divided into two test methods.
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
[Page extract]
Industry standards for torque to turn testing
There is no single universal standard for all torque to turn testing, but the method aligns with several sector-specific standards. Examples include:
1079
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.
1080
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.
1081
[Page extract]
Construction
Mecmesin systems and gauges are designed for the application of international and industry standards for quality and safety...
1082
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.
1083
[Page extract]
Torque testing
Torque testing is a way of determining how an object will react when it is being turned - during normal operation or being twisted until it deliberately fails or breaks.
1084
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.
1085
Event
Advanced Engineering 2021 - We would love to see you there!
Who should attend?
Engineering professionals and managers from advanced manufacturing sectors interested in quality assurance testing solutions.
What is the exhibition about?
1086
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.
1087
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.
1088
[Page extract]
Testing equipment and procedures
Compression testers with parallel platens apply controlled loads at specified rates.
1089
[Page extract]
ASTM D882-18
ASTM D882 is a test method that covers the determination of tensile properties of plastics in the form of thin sheeting and films (less than 1.0 mm (0.04 in.) in thickness). It is used to measure tensile properties including ultimate tensile
1090
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.
1091
[Page extract]
Challenges and considerations
Even with well-defined standards, tear resistance testing can be influenced by:
1092
Case study
Synthetic sports surface tuft binding
Customised engineering example
Test method standard BS ISO 4919 applies to the tuft withdrawal force of carpets.
1093
Sensor
Sensors - Vortex-dV
Torque sensors
A range of 'Smart' interchangeable torque sensors are specially adapted for the Vortex-dV test system. Plug and play for automatic calibration and a range of capacities for all requirements, from 1.5 N.m (13 lbf.in) to 10 N.m (90 lbf.in).…
1094
[Page extract]
ASTM D3032
These test methods detail the standard procedures for testing hookup wire insulations including all components of the insulation system used on single insulated conductors or an assembly of single insulated conductors such as a cable bundle and harness
1095
[Page extract]
Ultimate Tensile Strength
What it is, how to measure it, and why it matters
Ultimate tensile strength (UTS) is a critical property used to determine how materials behave under tension. It defines the maximum stress a material can withstand before breaking.
1096
[Page extract]
Compression
Compression testing is a way of determining how something will react when a compressive force is applied to it. It typically involves measuring the relationship between the applied force and how much the object deforms.
It is performed to:
1097
Sensor
Sensors - Helixa
Torque sensors
The HTC range of interchangeable torque sensors are specially adapted for the Helixa test system. Plug and play for automatic calibration with availability to suit all requirements in capacities from 0.1 N.m (0.9 lbf.in) to 6 N.m (50 lbf.in…
1098
[Page extract]
Understanding compressive and tensile forces
Insertion and withdrawal testing focuses on two key force measurements:
1099
Accessory
Lower Keyless Chuck, large, round shaft, fits Vortex spindle
432-445
Lower ‘keyless’ 4-jaw Chuck (large)
Fitted with a round shaft for connection to the motor spindle of 'Vortex' motorised test stands. Supplied with 3 different sets of interchangeable jaws. Max.opening 80mm depending on jaws selected.
Used for holding…
1100
Accessory
Lever-operated Cam Grip (large serrated), 500 N, 10-32 UNF
432-047
The Large Lever-operated Cam Grip is fitted with a 10-32 UNF female thread and supplied with a male grub-screw. It is designed with a plated 70mm wide roller cam to self-tighten as a load is applied to a sample, spreading the load evenly. The lever also…