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Normas DIN – AENOR
DIN ISO 27588:2009-06

DIN ISO 27588:2009-06

Rubber, vulcanized or thermoplastic - Determination of dead-load hardness using the very low rubber hardness (VLRH) scale (ISO 27588:2008) / Note: Date of issue 2009-06-22

Caoutchouc vulcanisé ou thermoplastique - Détermination de la dureté sous charge constante au moyen de l'échelle de très faible dureté (VLRH) (ISO 27588:2008) / Attention: Date de parution 2009-06-22

Elastomere und thermoplastische Elastomere - Bestimmung der Gewichtsbelastungs-Härte mittels der Skala der sehr niedrigen Gummihärte (VLRH) (ISO 27588:2008) / Achtung: Erscheinungsdatum 2009-06-22

Fecha Anulación:
2010-05 /Withdrawn
Equivalencias internacionales:

ISO 27588 (2008-08)

Relación con otras normas DIN:

Reemplazada por: DIN ISO 27588:2010-05

Resumen:
The Standard stipulates a method for hardness testing of very soft elastomers, like silicones, with the designation VLRH scale. The elaboration of this standard became necessary because in several industrial branches, like car industry, but also in medicine increasingly silicones are applied, but the hardness testing methods used so far could not sufficiently discriminate the hardness differences of silicones. Compared with present methods, the VLRH method excels by test forces and an indentation depth measurement with high resolution, which fit with the properties of very soft silicones. By the standardization of the VLRH scale in ISO 27588 the user of this method is given safety, and supplier and costumer in to be concluded contracts can refer to this standard.
Keywords:
Conditioning, Elastomers, Hardness, Instrument scales, Materials testing, Physical testing, Rubber, Sampling methods, Test chamber, Test specimens, Testing, Thermoplastic, Thermoplastic polymers, Vulcanized rubber
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