VOLATILE LIQUID SAMPLERS AND PROCESS FOR THEIR MANUFACTURE

摘要

A sampler for a volatile fluid material comprises: a. a vapour barrier base layer 1 having applied directly to a selected area of a first face thereof a volatile fluid material 2; b. a vapour barrier cover layer 3 applied directly and without an intermediate layer over at least said selected area of the said first face of the base layer; c. a seal 4 between at least the periphery of said base and cover layers whereby there is formed a vapour barrier enclosure containing said volatile material, said seal being separable whereby a user can separate at least part of said cover layer from said base layer so as to expose at least part of said first face of said base layer directly to the atmosphere and allow the fluid volatile material to be released and to replace said cover layer so as to prevent further release of said volatile material.