STN EN ISO 21814
| Name: | STN EN ISO 21814 |
| Validity: | Valid |
| Number of pages: | 48 |
| Language: |
EN
|
| Paper: | 18,90€ |
| Electronic version |
a) Only read (without ability to print and copy)
17,01€ b) Without ability to print, with ability to copy (printscreen) 18,90€ c) With ability to print and copy (printscreen) 24,57€ |
| Slovak title | Jemná keramika (špeciálna keramika, špeciálna technická keramika). Metódy chemickej analýzy práškov nitridu hliníka (ISO 21814: 2019) |
| English title | Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of aluminium nitride powders (ISO 21814:2019) |
| Release Date: | 01. 04. 2023 |
| Date of withdrawal: | |
| ICS: | 81.060.30 |
| Sorting character/National clasification code | 72 7501 |
| Level of incorporation: | idt ISO 21814:2019, idt EN ISO 21814:2022 |
| Official Journal | 03/23 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 725-4:2006-10 (72 7515) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies methods for the chemical analysis of fine aluminium nitride powders used as the raw material for fine ceramics. This document stipulates the determination methods of the aluminium, total nitrogen, boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium, zinc, zirconium, carbon, chlorine, fluorine, and oxygen contents in aluminium nitride powders. The aluminium content is determined by using either an acid pressure decomposition-CyDTA-zinc back titration method or an acid digestion-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The total nitrogen content is determined by using an acid pressure decomposition-distillation separation-acidimetric titration method, a direct decomposition-distillation separation-acidimetric titration method, or an inert gas fusion-thermal conductivity method. |
| Preview: | Náhľad normy (PDF) |