Reference number
ISO 2752:1973
ISO 2752:1973
Urea for industrial use — Measurement of the variation of pH in the presence of formaldehyde — Potentiometric method
Edition 1
1973-12
Retirada
ISO 2752:1973
7732
Retirada (Edición 1, 1973)

Resumen

Specifies the principle of measurement, at (20 0.5) 0C, of the quantity of 0.01 N sodium hydroxide standard volumetric solution required to take the pH of a solution containing 50 g of sample in 100 ml of water to a pH of 8.3 after addition of formaldehyde. Has also been approved by the IUPAC.

Informaciones generales

  •  : Retirada
     : 1973-12
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.080.30 
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