Uploaded January 2021 | Updated September 2026, 3 days ago

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ISO 9727-4
Cylindrical cork stoppers - Physical tests - Part 4: Determination of dimensional recovery after compression
ISO 9727-4 specifies a test method for determining the percentage of diameter recovery of cylindrical cork stoppers, after compression.

It is applicable to all types of cylindrical cork stoppers ready for use or semi-worked, intended to be completely inserted into the bottle neck (straight cork stoppers).