DIN and ISO standards

DIN 28017 Rubber hoses and hose assemblies, wire or textile reinforced, for dredging applications - Specification

DIN EN 10204 Inspection Certificate / Test report

DIN 53504 Tensile Strength: The elongation at tear is the quotient of the change Lt - L0 of the test length as measured at the moment of tear and the original length L0 of the test body (DIN 53504)

DIN 53505 Testing of rubber - Shore A / Shore D hardness test: To be understood as the Shore hardness is the resistance exercised by the test material to a body of defined shape being pressed into it under a defined spring pressure (DIN 53505), Shore A for soft rubber, Shore D for Ebonite/hard rubber. The scale per Shore A ranges from 0 - 100 Shore.

DIN 53507 / 52515 Tear Resistance: The resistance to tearing is the quotient of the force Ft as measured at the moment of tearing and the initial cross-section A0 of the test body (DIN 53504)

DIN 53512 Rebound resilience: The rebound resilience R is the ratio of the energy recovered to the energy expended (DIN 53512)

DIN 53516 Abrasion resistances: Material loss in mm3 as a result of friction. Indicates the resistance of a vulcanized product against wear through abrasion.

DIN 53517 Compression set: Residual deformation of a vulcanized product after long-term, constant deformation, whereby measurements are taken of the extent to which the test specimen reforms when released. The indication is in % from the ratio of the non-reformed distance to the compressed distance.

DIN 53308 Resistance to aging: Aging process accelerated in a heat cabinet. Material properties such as hardness, tensile strength etc. are compared before and after aging.

DIN 53521 Resistance to liquids, steam and gases: In the course of time, rubber absorbs the material being transported and it begins to swell, which changes the mechanical properties. To determine these changes, one exposes vulcanized products to the contact media for a limited time at different temperatures and then measures the material characteristics again.

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