STN EN ISO 21821
| Name: | STN EN ISO 21821 |
| Validity: | Valid |
| Number of pages: | 20 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Jemná keramika (špeciálna keramika, špeciálna technická keramika). Stanovenie zhutňovacích vlastností keramických práškov prirodzeným spekaním (ISO 21821: 2019) |
| English title | Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of densification properties of ceramic powders on natural sintering (ISO 21821:2019) |
| Release Date: | 01. 04. 2023 |
| Date of withdrawal: | |
| ICS: | 81.060.30 |
| Sorting character/National clasification code | 72 7502 |
| Level of incorporation: | idt ISO 21821:2019, idt EN ISO 21821:2022 |
| Official Journal | 03/23 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 725-11:2006-12 (72 7515) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies the test method to determine the extent to which ceramic powder compacts made of granulated or ungranulated ceramic powders are densified, when they are sintered at a high temperature without the application of any external pressure or external densification force. The test method is applicable to pure oxides, mixtures of oxides and solid solutions, and is also applicable to non-oxides (e.g. carbides, nitrides) that can be sintered under vacuum or constant gas pressure (1 bar or less) to prevent oxidation or decomposition. The test method is not applicable to ceramics that can only be sintered using pressure-assisted sintering techniques such as hot pressing (HP), hot isostatic pressing (HIP), gas pressure sintering (GPS) or spark plasma sintering (SPS). Inorganic sintering additives can be used where their presence is reported. |
| Preview: | Náhľad normy (PDF) |