- Author
-
Wickstrom, U.
- Title
- Plate Thermometer: Practical Aspects.
- Coporate
- Swedish National Testing and Research Institute, Boras, Sweden
- Report
-
SP Report 1997:28
1997
23 p.
- Keywords
-
thermometers
|
fire resistance testing
|
furnaces
|
durability
- Identifiers
- plate thermometer
- Abstract
- Fire resistance furnaces have different thermal properties and expose test specimens to different heating conditions if controlled by temperature readings by ordinary TC's. the so called Plate Thermometer PT has therefore been introduced. Several investigations carried out have shown that by controlling furnaces with this type of thermocouple harmonised testing can be achieved in various furnaces throughout Europe. This harmonisation means, however, unavoidably that some combinations of furnaces and type of specimens will yield higher and some will yield lower fire resistance ratings. This paper gives some information on the practical use of the PT's and some indications on the level of change of resistance time of some types of specimens that could be expected in some furnaces when controlled with PT's instead of ordinary TC's.