ISO 4802-2:2023-玻璃器皿玻璃容器内表面的抗水解性第2部分:火焰光谱法和分类法的测定-国家数字标准馆

现行 ISO 4802-2:2023

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Glassware — Hydrolytic resistance of the interior surfaces of glass containers — Part 2: Determination by flame spectrometry and classification 玻璃器皿玻璃容器内表面的抗水解性第2部分:火焰光谱法和分类法的测定

发布日期： 2023-12-04

本文件规定:
A）？一种测定玻璃容器内表面在（121？±？1）？°C（60？±？1）？分钟。通过使用火焰原子发射或吸收光谱法(火焰光谱法)测定萃取溶液中钠和其他碱金属或碱土金属氧化物的量来测量电阻；
b）？根据本文件规定的方法测定的内表面耐水解性对玻璃容器进行分类。
本文件中规定的试验方法可能不适用于表面经过功能性改性处理的容器，例如硅树脂（例如准备直接灌装的容器）。

This document specifies:
a)？a method for determining the hydrolytic resistance of the interior surfaces of glass containers when subjected to attack by water at (121？±？1)？°C for (60？±？1)？min. The resistance is measured by determining the amount of sodium and other alkali metal or alkaline earth oxides in the extraction solution using flame atomic emission or absorption spectrometry (flame spectrometry);
b)？a classification of glass containers according to the hydrolytic resistance of the interior surfaces determined by the methods specified in this document.
The test method specified in this document might not be applicable to containers whose surfaces have been treated for functional modifications, e.g. silicone (e.g. containers that are ready for direct filling).