KERN mlb-c Operating Manual
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Contents
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60 MLB_C-BA-e-143116.7 Drying temperatureBear in mind the following factors when setting the drying temperature:Surface of the sample:Compared with powdery or grainy samples, liquid and spreadable samples have asmaller surface for the transmission of heat energy.The use of a glass fibre filter improves the heat application.Colour of sample:Light-coloured samples reflect more heat radiation than dark ones and thereforerequire a higher drying temperature.Availability of volatile substances:The better and faster the water or other volatile substances can be disposed, thelower a drying temperature is required. If water is difficult to get to (e. g. insynthetics), it has to be calcined at high temperatures (the higher the temperature,the higher the water vapour pressure).Results equivalent to other moisture analysing methods (e. g. drying chamber) canbe achieved by experimentally optimising the setting parameters such astemperature, heating level and shutoff criteria. |
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