STN EN ISO 4499-2
| Označenie: | STN EN ISO 4499-2 |
| Platnosť: | Platná |
| Počet strán: | 28 |
| 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. Metalografické stanovenie mikroštruktúry. Časť 2: Meranie veľkosti zŕn karbidu WC (ISO 4499-2: 2020) |
| Anglický názov: | Hardmetals - Metallographic determination of microstructure - Part 2: Measurement of WC grain size (ISO 4499-2:2020) |
| Dátum vydania: | 01. 02. 2021 |
| Dátum zrušenia: | |
| ICS: | 77.040.99, 77.160 |
| Triediaci znak: | 42 0871 |
| Úroveň zapracovania: | idt EN ISO 4499-2:2020, idt ISO 4499-2:2020 |
| Vestník: | 01/21 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | STN EN ISO 4499-2:2010-11 (42 0871) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document gives guidelines for the measurement of hardmetal grain size by metallographic techniques only using optical or electron microscopy. It is intended for WC/Co hardmetals (also called cemented carbides or cermets) containing primarily tungsten carbide (WC[1]) as the hard phase. It is also intended for measuring the grain size and distribution by the linear-intercept technique. This document essentially covers four main topics: — calibration of microscopes, to underpin the accuracy of measurements; — linear analysis techniques, to acquire sufficient statistically meaningful data; — analysis methods, to calculate representative average values; — reporting, to comply with modern quality requirements. This document is supported by a measurement case study to illustrate the recommended techniques (see Annex A). |
| Náhľad normy: | Náhľad normy (PDF) |