Kern-sohn MLS 50-3C User Manual download pdf (Page 73)

MLS_C-BA-e-1330 73

11.5 Sample material

Easy to determine are usually samples with the following characteristics:

- Grainy to powdery, pourable solids

- Thermally stable materials, emitting the moisture to be determined easily

without other substances evaporating at the same time

- Liquids that vaporize to leave a dry substance without developing a film

Difficult 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 elements

11.6 Sample size / originally weighted in quantity

Drying times, as well as achievable accuracy, are significantly influenced by sample

distribution. In the course of this arise two opposed requirements:

The lighter the originally weighted in quantity, the easier it is to achieve shorter drying

times.

However, the heavier the originally weighted in quantity, the more accurate a result

(example of a sample with ideal characteristics) will be achieved.

Poured

quantity

Reproducibility

0.5g

±0.6%

±0.3%

±0.15%

±0.06%

10g

±0.03%

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Kern-sohn MLS 50-3C User Manual Page 73