EN ISO 9117-4:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Sampling
6 Test conditions and number of tests
7 Method A - Using a straight-line drying-time recorder
8 Method B - Using a circular drying-time recorder
9 Classification of drying stages
10 Precision
11 Test report

ISO 9117-4:2012 specifies a test for determining the times taken to reach various stages of drying of organic coatings, using a mechanical straight-line or circular drying-time recorder. The use of a mechanical recorder is valuable in comparing the drying behaviour of coatings of the same generic type, when one coating might form a gel at a faster rate than another or might resist scratching better than another. The test is intended to simulate the conditions which exist when painted articles are stacked upon each other.