Appendix - AND BM Series Instruction Manual

The table below lists the relation between the ISO 8655 requirements and the pipette accuracy
tester.
Pipette
nominal
Maximum permissible error
volume
Accuracy
*5
(L) ±% ±L
1 5.0 0.05
2 4.0 0.08
5 2.5 0.125
10 1.2 0.12
20 1.0 0.2
50 1.0 0.5
100 0.8 0.8
200 0.8 1.6
500 0.8 4.0
1000 0.8 8.0
2000 0.8 16
5000 0.8 40
10000 0.6 60
Daily inspection, simplified verification
*5
The maximum volume selectable for adjustable volume pipettes
The BM-20/22 can be used for the pipette volume range from 1 L to 200 L.
*6
The BM-252 can be used for the pipette volume range from 20 L to 200 L.
*7
When the pipette volume range is 500 L or more, use the AD-4212A-PT or AD-4212B-PT
*8
Because the provided sample cup of the pipette accuracy tester kit for BM series has a volume of
5 mL, it is impossible to perform the series of ten measurements per volume that are
recommended by ISO 8655 when the pipette nominal volume is 500 mL or more.
The minimum weighing value, 1 mg, approximately corresponds to 1 L. If a pipette volume is
*9
1000 L, a test can be performed with a resolution of 0.1%. If 200 L, 0.5%.
NOTE Pipette accuracy testing is performed using a high-resolution valance. Make sure that
the measurement environment is free from vibration, drafts and air from air
conditioners. For details, refer to "3. PRECAUTIONS BEFORE USE".

13. APPENDIX

ISO 8655 requirements
Balance minimum
Repeatability weighing value
L
%
5 0.05
2 0.04
1.5 0.075
0.8 0.08
0.5 0.1
0.4 0.2
0.3 0.3
0.3 0.6
0.3 1.5
0.3 3.0
0.3 6.0
0.3 15
0.3 30
mg
0.001
0.01
0.1
0.1
*9
1
23
*6
BM-20/22
*7
BM-252
BM-500, 300, 200
Use the AD-4212A-PT,
*8
AD-4212B-PT.
FX-300i-PT