765 Laboratory pH Meter
14
Operation
Calibration buffer set (00 to 10)
Select the buffer set with the buffer solutions you
are using. The meter has stored eleven different
calibration buffer sets.
(see Buffer sets Pg. 49).
The meter can only operate properly when the
buffer solutions used correspond to the selected,
activated buffer set.
Other buffer solutions, even those with the same
nominal values, may demonstrate a different tem-
perature behavior.
This leads to measurement errors.
BUFF –00–
Knick technical buffers
pH
2.00
4.01
7.00
9.21
(25°C
BUFF –01–
Mettler-Toledo technical buffers (correspond to Ingold technical buffers)
pH
2.00
4.01
7.00
9.21
(25°C)
BUFF –02–
Merck/Riedel
pH
2.00
4.00
7.00
9.00
12.00
(20 °C)
BUFF –03–
DIN19267
pH
1.09
3.06
4.65
6.79
9.23
12.75
(25°C)
BUFF –04–
DIN19266 and NIST (NBS)
pH
1.679
4.006
6.865
9.180
12.454
(25°C)
BUFF –05–
Merck/Riedel
pH
1.00
3.00
6.00
8.00
10.00
13.00
(20°C)
BUFF –06–
Merck
pH
4.66
6.88
9.22
(20°C)
BUFF –07–
Ciba(94)
pH
2.06
4.00
7.00
10.00
BUFF –08–
customer specific
pH
2.00
4.62
7.00
8.20
10.00
12.00
(20°C)
BUFF –09–
customer specific
pH
2.00
4.01
7.00
9.21
12.00
(25 °C/20 °C)
BUFF -10–
Mettler Toledo (USA)
pH
4.00
7.00
10.01
(25 °C)
