Glassware. Hydrolytic resistance of the interior surfaces of glass containers - Determination by titration method and classification
Glassware. Hydrolytic resistance of the interior surfaces of glass containers - Determination by titration method and classification
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Glassware. Hydrolytic resistance of the interior surfaces of glass containers - Determination by titration method and classification

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1   Scope

This part of ISO 4802 specifies:
  1. a) a method for determining the hydrolytic resistance of the interior surfaces of glass containers when subjected to attack by water at 121 °C ± 1 °C for 60 min ± 1 min. The resistance is measured by titration of a known aliquot portion of the extraction solution produced with hydrochloric acid solution, in which case the resistance is inversely proportional to the volume of acid required;
  2. b) a classification of glass containers according to the hydrolytic resistance of the interior surfaces determined by the methods specified in this part of ISO 4802.