Modified Atmosphere Packaging (MAP) - Sample Needle

The Bridge Sample Needle (p/n 000617) is a cross-drilled, 20 gauge sample needle specifically designed for MAP Gas Analyzers. Bridge MAP analyzers use specially designed sample needles and filters for sampling headspace gas. Bridge Sample Needle vs Generic Hypodermic Needle: The Bridge sample needle is a cross-drilled pencil-point needle designed to provide redundant gas input ports located away from the closed needle tip.  Hypodermic needles, by contrast, have a single beveled sharp point entry at the needle tip.  When used to sample headspace gas, the Bridge needle pierces the overwrap and pulls in sample gas through the two cross-drilled entry ports – providing a minimum of gas restriction while maintaining low needle volume.  These ports are perpendicular to the needle surface and located ¼ inch from the needle tip – providing lowered risk of needle contamination.  In the case where one of the ports contacts product or liquid, gas is drawn through the other open port – resulting i