
Modified Atmosphere Packaging (MAP) - Sample Needle w/ Barb
The Bridge Sample Needle w/ Barb (p/n 000621) is a cross-drilled, 18 gauge sample needle specifically designed for use with our Bridge Tri-Gas Case Ready Meat 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 dra