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Torque testing standards
A range of recognised standards define the correct procedures for reverse ratchet torque testing, ensuring consistent and reliable results.
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Step-by-step needle penetration testing process
Sample preparation
Specimens are cut to the required dimensions and conditioned to the specified environmental parameters such as temperature and humidity. Thickness and surface finish are controlled for consistency.
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Introduction to friction in material science
Friction is a critical factor in how materials behave under movement. It is the resistive force that occurs when two surfaces are in contact and attempt to slide against each other.
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Applications in industry
Engineering and manufacturing uses
Tangent modulus testing supports design validation and process control in sectors where materials operate near or beyond the elastic range, for example:
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Applications across sectors
Texture testing in food manufacturing
Bread softness for freshness control, snack crispness for quality assurance, firmness in
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Springs
Springs are elastic objects used to store mechanical energy and they change shape in response to external forces, returning to their original shapes when the forces are removed.
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Types of flexure tests
Different flexure testing setups are chosen based on the nature of the material, the required precision, and the industry standards being followed.
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What is fastening torque
Fastening torque refers to the rotational force applied to tighten a fastener, typically measured in Newton-metres (N·m) or pound-force inches (lbf·in). The correct torque value ensures adequate clamping without overstressing components.
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How peel wheel tests are conducted
Specimen preparation – The bonded material is cut to defined dimensions, ensuring uniformity of size and adhesive application.
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Types of compressive shear tests
Test configurations vary according to the material, application, and relevant industry standard.
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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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Standards and compliance
International standards ensure penetration and puncture testing is performed consistently for reliable and comparable results.
Key examples include:
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Step-by-step test methodology
Preparation
Sample selection - Choose representative specimens, avoiding faults unless deliberately testing them.
Specimen cutting - Cut to standard dimensions with a central slit of specified
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Introduction to the ring crush test
The ring crush test (RCT) is a key method for determining the edgewise compression strength of paper and paperboard.
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The concentric ring method
The most widely used approach to equibiaxial flexure compression testing is the concentric ring method. A circular specimen is supported on an outer ring and loaded through a smaller, concentric inner ring.
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Standards and protocols
Notable standards and specifications
Several international standards define single lap shear testing methods:
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The science behind chord modulus
Definition and importance
Chord modulus is determined by drawing a straight line, known as the chord, between two points on the stress-strain curve.
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What is strip torque testing?
Definition and importance
Strip torque testing measures the torque required to continue rotating a threaded closure beyond its normal sealing point until the thread strips or the closure fails.
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BS 7409
Lays out safety requirements for wheeled conveyances for one or more children. Does not cover wheeled conveyances designed for invalid children and does not specify requirments for accessories or products not designed for use with a chassis.
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ASTM D3950
This specification covers nonmetallic strapping and joining methods for closing, reinforcing, and bundling materials for shipment, unitizing, palletizing, and bracing for car and truck loading.
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BS EN ISO 80369-20
These standards describes the methods for testing the performance of 6% Luer lock fittings including assembly, leak tightness, stress cracking, and separation force.
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ASTM D6241-04
This test method for determining the puncture strength of geotextiles is to be used by the industry as an index of puncture strength.
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Drehmomentprüfsysteme
Benötigen Sie ein Maß an Genauigkeit und Wiederholbarkeit, das manuelle Prüfgeräte einfach nicht erreichen können? Möchten Sie die Prüfungszeit verkürzen
1424
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Medical Devices: Syringe & Needle Testing Fundamentals
Every manufacturer (and patient) requires reliable needle and syringe function - ensuring safe & efficient drug administration.
Therefore, checking the performance and functionality of these medical devices is critical, with physical testi
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ASTM F1306
ASTM F1306, is a test method, which permits flexible barrier films and laminates to be characterised for slow rate penetration resistance to a driven probe.