C200 SOFTWARE
Instruction Manual C200 Part2 A1.doc
optek Danulat GmbH • D-45356 Essen • Germany
page 105
8 Appendix
8.1 Buffer Solutions pH
The pH value of buffer solutions is influenced considerably
by temperature variations. Thus, when significant
temperature fluctuations occur, it is general practice to
correct automatically the measured, prevailing pH to the
value that would apply if the solution temperature were
25°C (77°F), the internationally accepted standard.
Tables A1 to A5 include the pH values for ABB, DIN,
Merck, NIST, and US Technical buffer solutions.
Standards are for 4, 7 and 9pH values, from 0 to 95°C
(32 to 203°F).
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