wtw inoLab 740, Operating Manual

Page: 78 / 274

pH
78
6.2.1 Buffer sets
Before each calibration, it is necessary to inspect the
selected calibration procedure and the buffer sets used. You
can use the following buffer sets at the specified
temperatures for an automatic calibration.
Buffer set Menu
designati
on pH
values at
temp
WTW technical buffer
solutions Buffer
TEC 2.00
4.01
7.00
10.00 25 °C
Standard buffer solutions
according to DIN 19266 Buffer
DIN 1.679
4.006
6.865
9.180
12.454 25 °C
Merck company
Titrisole buffers and buffer
solutions
Riedel de Haen company
Fixanale buffers and buffer
solutions
Buffer
Mrk1 2.00
4.00
7.00
9.00
12.00 20 °C
Merck company
Titrisole buffers and buffer
solutions
Riedel de Haen company
Fixanale buffers and buffer
solutions
Buffer
Mrk2 1.00
3.00
6.00
8.00
10.00
13.00 20 °C
Merck company ready-made
buffer solutions Buffer
Mrk3 4.66
6.88
9.22 20 °C