Patent ID: 8003391

Claim:
A fluid storage and dispensing apparatus comprising a fluid storage and dispensing vessel adapted to hold a halide fluid, said vessel including a neck portion and a valve head assembly attached to said vessel at said neck portion, and a colorimetric fluid leak detection device, comprising a colorimetric element comprising a chemistry effective in the presence of halide fluid to produce a color change visually indicating a leakage event involving said halide fluid, in the presence of atmospheric gases, said colorimetric element comprising a colorimetric material film that is clear or translucent prior to contact with said halide fluid to facilitate visual observation of the fluid storage and dispensing vessel underlying the colorimetric material film, said colorimetric material film defining a shroud structure that is circumferentially sealed to an exterior surface of the vessel and overlying the neck portion of the vessel and the valve head assembly to define an interior void volume enclosed by the colorimetric material film, wherein said enclosed interior void volume surrounds the neck portion and valve head assembly, whereby leakage of said halide fluid at said neck portion or at said valve head assembly can enter the enclosed interior void volume and distribute throughout said enclosed interior void volume to effect a color change in the colorimetric material film surrounding the neck portion and valve head assembly, thereby providing a visually perceptible response to a leakage event of said halide fluid, wherein the visually perceptible response is visible in the colorimetric material film around an entire circumferential extent of the neck portion and the valve head assembly of the vessel.