Anton Paar DMA 4100 Manual De Instrucciones página 23

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Calibration procedure:
1. Perform a density check (see Chapter 7.2) with water and carry out an
2. Thoroughly clean and dry the measuring cell (see Chapter 9).
3. Immediately after opening the bottle, inject the liquid density standard by
4. After the measurement is finished, print the result (density at given
5. Document the calibration procedure in a calibration protocol which contains
6. Perform a thorough cleaning of the measuring cell.
XDLIB28
The frequency of calibrations with certified liquid density standards depends
on the requirements and the user's judgement. Recommendation: 1 to 2
calibrations per year.
Notes on the 5 liquid density standards, supplied with the DMA:
- The density of the ultra pure water (density standard) is given at different
temperatures with an uncertainty of 0.00001 g/cm
95%.
- The listed densities are valid for the time at which the liquids were filled.
- The calibration liquids should be stored in a cool and dark place!
- The calibration liquids must be used immediately and only once after the
bottle has been opened!
adjustment at 20 °C (see Chapter 7.3.1), if necessary.
means of a glass or metal syringe without any air bubbles into the measuring
cell of the DMA.
temperature).
the operator's name, date, place, description of the calibration procedure,
results and the calibration certificate of the liquid density standard.
7 Checking Procedure, Adjustment and Calibration
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at a confidence level of
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