Reproducibility; Comparability - Thermo Scientific HAAKE Instruction Manual

Measuring
To evaluate the reliability of the results the following criteria
may be used:
9.3.1 Reproducibility (one person, one instrument)
If one person determines two test results under identical test
conditions, these results are supposed to be acceptable if
they do not vary more than the figures stated in the table
below from the average value.
9.3.2 Comparability (several persons, several different
instruments)
If two sets of test results are reached in two different labora-
tories under comparable conditions, these results are sup-
posed to be acceptable if they do not vary more than the fig-
ures stated in the table below from the average value.
Ball-No.

Reproducibility %

1
2, 3, 4
5
6
The falling ball viscometer is suitable only for measure-
ments on Newtonian fluids and is calibrated.
15

Comparability %

DIN 53015
1.0 2
0.5 1
0.7 1.5
1.5 3
ISO 12058
2
2
1
3