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ISO 4802-1:2016
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ISO 4802-1:2016 Glassware - Hydrolytic resistance of the interior surfaces of glass containers - Part 1: Determination by titration method and classification
standard by International Organization for Standardization, 06/15/2016
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Full Description
ISO 4802-1:2016 specifies:
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;
b) a classification of glass containers according to the hydrolytic resistance of the interior surfaces determined by the methods specified in ISO 4802-1:2016.