Metrohm 807 - Page 50

6.2 Dosing accuracy
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807 Dosing Unit
Table 4 Permissible limit values as per ISO/EN/DIN 8655-3
Cylinder
volume
(mL)
max. systematic
Measurement deviation
max. permissible
Measurement deviation
2 ± 0.5 % ± 10 µL ± 0.1 % ± 2 µL
5 ± 0.3 % ± 15 µL ± 0.1 % ± 5 µL
10 ± 0.2 % ± 20 µL ± 0.07 % ± 7 µL
20 ± 0.2 % ± 40 µL ± 0.07 % ± 14 µL
50 ± 0.2 % ± 100 µL ± 0.05 % ± 25 µL
The Metrohm agents worldwide offer the possibility of on-site dosing unit
inspections and certifications with respect to accuracy. We recommend
that an accuracy inspection be performed when the dosing cylinders and
dosing pistons of a dosing unit are replaced.