ISO 3241:1975 PDF
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Sodium sulphate for industrial use — Measurement of pH — Potentiometric method
Relates to measurement at 20 0C of a solution. Preparation of a 10 g/l solution. Uses a pH meter fitted with a glass measuring electrode and a calomel reference electrode. The calibration of the pH meter is carried out at (20 1) 0C using buffer solutions; sensitivity 0,05 pH units.
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| Edition | 1975 |
|---|---|
| Published Date | 1975 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
