SAMPLE CONTAINERS AND CLOSURE MEANS THEREFOR

摘要

A microtube (3) with a closure cap (4), the cap (4) having an aperture passing through which allows an aperture occluding means (40) to be associated therewith. The aperture occluding means has two modes of operation: first venting mode in which egress out of or ingress into the interior (9) of the microtube is allowed and a second sealing mode in which the microtube (3) is sealed. Methods of using such microtubes (3) and of modifying existing ones are also provided.