KERN mlb-c Operating Manual
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Contents
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MLB_C-BA-e-1431 5916.5 Sample materialEasy to determine are usually samples with the following characteristics:- Grainy to powdery, pourable solids- Thermally stable materials, emitting the moisture to be determined easilywithout other substances evaporating at the same time- Liquids that vaporize to leave a dry substance without developing a filmDifficult to determine may be samples that are:- Glutinous or sticky- Become incrusted easily or tend to form a film- Decompose easily under the influence of heat or emit various elements16.6 Sample size / originally weighted in quantityDrying times, as well as achievable accuracy, are significantly influenced by sampledistribution. In the course of this arise two opposed requirements:The lighter the originally weighted in quantity, the easier it is to achieve shorter dryingtimes.However, the heavier the originally weighted in quantity, the more accurate a resultwill be achieved. (example of a sample with ideal characteristics):PouredquantityReproducibility0.5g ±0.6%1g ±0.3%2g ±0.15%5g ±0.06%10g ±0.03% |
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