This standard BS EN 12377:2022 Packaging. Flexible tubes. Test method for the air tightness of closures is classified in these ICS categories:
55.120 Cans. Tins. Tubes
This document specifies a test method for airtightness of the closures for flexible tubes. It is applicable to flexible tubes used for packing pharmaceutical, cosmetic, hygiene, food and other domestic and industrial products It is not applicable to flexible tubes with external applicators added on to the tube by the consumer and pumps.