NEN-ISO 540
Solid mineral fuels - Determination of fusibility of ash - High-temperature tube method
inactive
| Organization: | NEN |
| Publication Date: | 1 June 1995 |
| Status: | inactive |
| Page Count: | 10 |
| ICS Code (Solid fuels): | 75.160.10 |
scope:
A test piece made from the ash is heated under standard conditions and continuously observed. Thet temperatures at which characteristics change of shape occur are recorded. The characteristics temperatures are the following: - deformation temperature (the edges begin to round) - hemisphere temperature (the test piece forms approcimately a hemisphere) - flow temperature (the height of the layer formed by the ash is one-third of the height of the test piece at the hemisphere temperature).
Document History
June 1, 2008
Hard coal and coke - Determination of ash fusibility
This International Standard specifies a method of determining the characteristic fusion temperatures of ash from coal and coke.
NEN-ISO 540
June 1, 1995
Solid mineral fuels - Determination of fusibility of ash - High-temperature tube method
A test piece made from the ash is heated under standard conditions and continuously observed. Thet temperatures at which characteristics change of shape occur are recorded. The characteristics...