Ad-weighing FX-300i-PT Manual do Utilizador descarregar pdf (Página 23)

9. MEASUREMENT

9-1 Measuring Procedure

Using the predetermined pipette volume, perform the measurement the specified times.

ISO 8655 recommends ten measurements for each for the volumes described below.

z At the nominal volume of a fixed volume pipette

z At the following three points of an adjustable volume pipette

1. 10% of the maximum volume or the lower limit of the adjustable volume range, whichever is

greater.

2. 50% of the maximum volume

3. 100% of the maximum volume

NOTE Pipette volumes and number of measurements can be changed.

9-2 Judging the Results

WinCT-Pipette converts the mass values into volumetric values, compares these with the

predetermined judgment standard and performs judgment whether the pipette will pass or fail.

z Judgment standard

The averaged value (exceeds / does not exceed) the specified maximum permissible error.

Repeatability (exceeds / does not exceed) the specified maximum permissible error.

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