ISO 4802-1:2010
Glassware — Hydrolytic resistance of the interior surfaces of glass containers — Part 1: Determination by titration method and classification
ISO 4802‑1:2010 specifies 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.
ISO 4802‑1:2010 also specifies 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.
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Scope
Normative references
Terms and definitions
Principle
Reagents
Apparatus
Sample preparation
Sample size
Determination of the filling volume
Flat-bottomed containers u 20 mm bore diameter (except ampou
Flat-bottomed containers \( 20 mm bore
Round-bottomed containers
Lipped containers
Ampoules
Syringes and cartridges
Procedure
General
Cleaning of samples
Filling and heating
Analysis of the extraction solutions
Testing to determine whether the containers have been surfac
Expression of results
Calculation
Classification
Distinction between containers of hydrolytic resistance cont
Designation
Test report
Reproducibility
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Scope
Normative references
Terms and definitions
Principle
Reagents
Apparatus
Sample preparation
Sample size
Determination of the filling volume
Flat-bottomed containers u 20 mm bore diameter (except ampou
Flat-bottomed containers \( 20 mm bore
Round-bottomed containers
Lipped containers
Ampoules
Syringes and cartridges
Procedure
General
Cleaning of samples
Filling and heating
Analysis of the extraction solutions
Testing to determine whether the containers have been surfac
Expression of results
Calculation
Classification
Distinction between containers of hydrolytic resistance cont
Designation
Test report
Reproducibility