ISO 3867:2017 specifies test methods to determine the following characteristics of the composition cork intended to be used as a joint filler of expansion joints of concrete or other construction materials:
- apparent density,
- expansion in water,
- compression,
- recovery,
- extrusion,
- water absorption.
These test methods apply to agglomerated cork joint filler with a nominal thickness ranging from 6,3 mm to 25 mm.