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1301
[Page extract]
Introduction to climbing drum peel testing
Climbing drum peel testing is a specialised method used to measure the adhesive strength between bonded materials, particularly in flexible-to-rigid substrate combinations such as aluminium skins bonded to honeycomb cores.
1302
Caso de estudio
Smoke grenade canister integrity
Customised engineering example
A manufacturer of smoke grenades required a means of testing the cap pull-off strength. The particular challenge was to grip the smooth metal cylinder for up to 5 kN of pulling force.
1303
Caso de estudio
Fuerza adhesiva de unión de paneles de construcción.
Requisito SIPS Frames UK Ltd (SIPS Eco Panels) es uno de los principales fabricantes independientes de sistemas de paneles aislantes estructurales del Reino Unido, para su uso en la construcción de casas de kits por autoconstructores.
1304
[Page extract]
ISO 594-1
Specification of the requirements for conical (Luer) fittings for use with hyperdemic syringes and needles and with certain other apparatus for medical use such as transfusion and infusion sets.
1305
[Page extract]
How bridge torque is measured
Bridge torque is measured by applying rotational force to a closure until the tamper-evident bridges shear.
1306
Caso de estudio
Railcar spring testing
Requirement
Seoul Metropolitan Railway Transit Corporation required a system for testing a variety of springs in their electric railcars. The springs range in size from 3mm to 100 mm in diameter.
1307
Event
Texture Testing for Bakery Applications
The primary goal for using instrumentation to measure texture is to capture an objective value to something that is typically evaluated very subjectively. Texture cannot be controlled unless it measured in a consistent and repeatable manner.
1308
[Page extract]
Industry standards and customisation
Alignment with recognised standards
Mecmesin systems support compliance with globally recognised testing standards, including:
1309
[Page extract]
ASTM C133-97
ASTM C133-97 outlines standardized test methods for determining the cold crushing strength and modulus of rupture of refractory materials.
1310
Página
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1311
[Page extract]
Key testing methods
Different materials require different approaches to compressive hardness testing. The most common methods are:
1312
Caso de estudio
Adhesive test on capsulated stoppers
Requirement
A capsulated stopper (T-top, Bar-Top or Altop®) is a natural or synthetic cork stopper where the end is glued into a cap of wood, PVC, porcelain, metal, glass or other material.
1313
[Page extract]
ASTM D7257-06
This test method of applying force may be used as a standard test to compare the characteristics of a given design of container/child-resistant closure system with a standard or to compare the characteristics of container/child resistant closure systems
1314
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Catálogo de accesorios
Elegir tus accesorios
Para lograr resultados de prueba precisos, es importante que su muestra se agarre y se mantenga correctamente.
1315
[Page extract]
ASTM D3578
Scope... 1.1 This specification describes certain requirements for natural rubber gloves used in conducting medical examinations and diagnostic and therapeutic procedures. It also covers natural rubber gloves used in handling contaminated medical
1316
[Page extract]
How to conduct a Concora crush test
Step-by-step procedure
Specimen preparation - Cut medium to the required size, typically 152.4 mm by 25.4 mm strips, ensuring clean edges.
1317
[Page extract]
Grab method vs strip method
Compared with the strip method (as defined by ISO 13934-1), which grips the full width of the fabric, the grab method
1318
Caso de estudio
Prueba de pelado de envases semirrígidos para dispositivos médicos.
Ejemplo de ingeniería personalizada Nuestro cliente necesitaba probar la calidad del pelado de una tapa de papel Tyvek® utilizada para sellar una bandeja de plástico termoformado semirrígido estéril que contiene jeringas precargadas.
1319
[Page extract]
Mechanical properties and accuracy considerations
Tensile testing via the strip method reveals mechanical properties that determine how fabrics perform in use.
1320
[Page extract]
Measurement and testing methods
Techniques for measuring tangent modulus
Tangent modulus is measured during tensile or compression testing, w
1321
[Page extract]
ISO 34-2 standards explained
ISO 34-2 specifies the Delft tear test procedure for vulcanised or thermoplastic rubber, ensuring testing is carried out under consisten
1322
[Page extract]
BS EN ISO 844
ISO 844 specifies a method of determining a) the compressive strength and corresponding relative deformation, or b) the compressive stress at 10 % relative deformation, and c) when desired, the compressive modulus of rigid cellular plastics.
1323
[Page extract]
The standard specifies the procedures for measuring the force required for needle penetration and the drag force as the needle travels through a simulated skin or tissue.
1324
[Page extract]
What is Young’s modulus?
Young’s modulus - also known as the modulus of elasticity or elastic modulus - defines how stiff a material is when a force is applied.
1325
Event
Tensile Testing for Wiring Harness Connections
The only way of really knowing the strength of a crimped terminal is to pull it. This can reveal production problems, where strand nicks, incorrect crimp height, or effects from changes in terminal supply, may not be clearly apparent.