Measurement, 1 measuring procedure, 2 judging the results – A&D Weighing FX-300i-PT User Manual
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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.