STN EN ISO 28079
| Označenie: | STN EN ISO 28079 |
| Platnosť: | Platná |
| Počet strán: | 24 |
| Jazyk: |
EN
|
| Listinná verzia: | 14,10€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
12,69€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 14,10€ c) S možnosťou tlače, prenosu textu a obrázkov: 18,33€ |
| Slovenský názov: | Spekané karbidy. Palmqvistova skúška húževnatosti (ISO 28079: 2026) |
| Anglický názov: | Hardmetals - Palmqvist toughness test (ISO 28079:2026) |
| Dátum vydania: | 01. 04. 2026 |
| Dátum zrušenia: | |
| ICS: | 77.040.10, 77.160 |
| Triediaci znak: | 42 0875 |
| Úroveň zapracovania: | idt EN ISO 28079:2026, idt ISO 28079:2026 |
| Vestník: | 03/26 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This document is applicable to a measurement of toughness, called Palmqvist toughness, calculated from the total length of cracks emanating from the corners of a Vickers hardness indentation, and it is intended for use with metal-bonded carbides and carbonitrides (normally called hardmetals, cermets or cemented carbides). The test procedures specified in this document are applicable for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures specified in this document are also applicable for use in a normal laboratory-air environment. This document is not applicable for use in corrosive environments, such as strong acids or seawater. |
| Náhľad normy: | Náhľad normy (PDF) |