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1926
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Test method and procedure
Preparing specimens
Material selection - Use representative samples from the batch being tested.
Cutting - Prepare specimens to the exact dimensions specified in
1927
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ASTM D6112-18
ASTM D6112 cover the determination of the creep and creep-rupture properties of plastic lumber and shapes, when loaded in compression or flexure under specified environmental conditions. Test specimens in the “as-manufactured” form are employed.
1928
Caso de estudio
Stabilised spring testing
Customised engineering example
Our client needed to test a number of small, lightweight springs under compression. To avoid buckling and sideways movement of the springs, a supporting spindle or guide-rod was required.
1929
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ASTM D3039 / D3039M
ASTM D3039 determines the in-plane tensile properties of polymer matrix composite materials reinforced by high-modulus fibers. A number of calculations can be made including ultimate tensile strength, ultimate tensile strain, tensile chord modulus of
1930
Caso de estudio
Seed bottle closure torque testing
Requirement
The Royal Botanic Gardens, Kew, have undertaken an international conservation initiative to preserve seed specimens of over 24,000 plant species, protecting them from extinction at the Millennium Seed Bank at Wakehurst Place, West
1931
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BS ISO 6133
BS ISO 6133 specifies five methods of calculating, after testing, the tear strength and the adhesion strength of vulcanized rubber or fabrics coated with or adhered to rubber or plastics.
1932
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ASTM D3410 / D3410M
ASTM D3410 determines the compressive properties of polymer matrix composite materials reinforced by high-modulus fibers.
1933
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CETIE Guide 9
This guide applies to the screw capping of pressurised wines & other beverages for narrow necks finishes with a redrawn metallic tamper-evident closure on a "BVS type" glass finish adapted for pressure caps. Includes sections on checking load setting on
1934
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Standards in torque testing
ASTM standards
ASTM D2063 – Reclosable child-resistant packaging
ASTM D3198 – Continuous thread closure torque testing
1935
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ISO 1827
ISO 1827 specifies methods for the determination of the modulus in shear and the strength of bonds of rubber to metal or other rigid plates, using rubber bonded between four parallel plates.
1936
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Comparison of relevant standards
Standard
Material types
Peel angle
Environment
1937
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ISO 7886-2
This document specifies requirements for sterile single-use hypodermic syringes of nominal capacity 1 ml and above, made of plastic materials and intended for use with power-driven syringe pumps. Annexe B covers the Pump Force to be measured.
1938
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BS EN 12453
BS EN 12453:2001 specifies the performance requirements with regard to the safety in use for any type of power operated doors, gates and barriers intended for installation in areas in the reach of persons, and for which the main intended uses are giving
1939
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ASTM D2979
This test method covers measurement of the pressure-sensitive tack of adhesives.
1941
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Rheological properties and their role
Rheology, the study of deformation and flow, is central to understanding extrusion behaviour. Key properties measured include:
1942
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ASTM D2731
ASTM D2731 is a test method for determining the elastic properties of elastomeric yarns made from rubber, spandex or other elastomers. Elastic properties include force at specified elongations, permanent deformation and stress decay.
1943
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BS EN ISO 8295
ISO 8295 specifies a method for determining the coefficients of starting and sliding friction of plastics film and sheeting when sliding over the same or other substances. It is intended to be used for non-sticky plastic film and sheeting of up to appr
1944
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Challenges and considerations
Even with well-defined standards, tear resistance testing can be influenced by:
1945
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ISO 16047
ISO 16047:2005 specifies the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts.
1946
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ASTM D3846
ASTM D3486 is a test method used for evaluating the in-plane strength of reinforced thermosetting plastics in flat sheet form in thicknesses ranging from 2.54 to 6.60 mm.
1947
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ASTM E1820-18ae1
The ASTM E1820 test method covers procedures and guidelines for the determination of fracture toughness of metallic materials using the following parameters: K, J, and CTOD (δ). Toughness can be measured in the R-curve format or as a point value.
1948
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ASTM D1578
Significance and Use
Test Method D1578 for testing any spun yarn for breaking strength is considered satisfactory for acceptance testing of commercial shipments since the method has been used extensively in the trade.
1949
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ASTM C582
This specification covers composition, thickness, fabricating procedures, and physical property requirements for glass fiber reinforced thermoset polyester, vinyl ester, or other qualified thermosetting resin laminates comprising the materials of constr
1950
Caso de estudio
Pruebas de cierre higiénico del contenedor
Ejemplo de ingeniería personalizada Un fabricante de contenedores de eliminación higiénicos nos llegó con una unidad de eliminación de pañales (pañales) equipada con un mecanismo de admisión giratorio.