ISO 10523:1994
ISO 10523:1994


The method specified (using a pH-meter) is applicable to all types of water and waste water samples in the range from pH 3 to pH 10. The temperature, some gases and organic materials interfere with the pH-measurement. Suspended materials in the sample may cause significant errors. When measuring sewage and some surface waters, there is a particularly high risk of smearing the electrodes or contaminating the membranes and diaphragm with oil, grease or other contaminants.

General information 

  •  :  Withdrawn
     : 1994-07
  •  : 1
     : 10
  •  : ISO/TC 147/SC 2 Physical, chemical and biochemical methods
  •  :
    13.060.50 Examination of water for chemical substances

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