ISO 4531:2022
Vitreous and porcelain enamels — Release from enamelled articles in contact with food — Methods of test and limits
This document specifies a simulating method of test for determination of the release of metal-ions from enamelled articles, which are intended to come into contact with food.
This document also specifies limits for the release of metal-ions from enamelled articles, which are intended to come into contact with food.
This document is applicable to enamelled articles, including tanks and vessels, which are intended to be used for the preparation, cooking, serving and storage of food.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Samples
8 Preparation of samples
9 Test conditions
10 Procedure
10.1 Release test
10.1.1 Release test lab apparatus
10.1.2 Release from enamelled articles
10.2 Sampling the release test solution for analysis (sample measuring solution)
11 Expression of results
11.1 Reporting
11.2 Test report
Annex A (informative) Explanatory information on release limits
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Samples
8 Preparation of samples
9 Test conditions
10 Procedure
10.1 Release test
10.1.1 Release test lab apparatus
10.1.2 Release from enamelled articles
10.2 Sampling the release test solution for analysis (sample measuring solution)
11 Expression of results
11.1 Reporting
11.2 Test report
Annex A (informative) Explanatory information on release limits
Bibliography