Well, if you have gotten this far in opening my blog, out of curiosity, you may be asking yourself, Vacuum Bulbs? I had recently received an order for a large number bulbs and asked myself the same question. What the heck do you do with these things? As a photographer, my first thought was blowing dust off of a surface or out of a camera. Well, obviously I was wrong. These bulbs are designed for use in Gas Sampling or for pumping gas through an apparatus. *Please note that the tubing DOES NOT come with the bulb. The bulbs are Heavy-walled and feature two rubber valves with PVC connections on each end. Also, the bulb has a capacity is 85mL. The tubing that connnects with the valves needs to have an inner diameter of 7.4mm.
This simple device is found in a production environment, whether it be working under a hood, on an experimental product line or as a means of capturing the sample to be used with CO2 or O2 gas Gas Analyzers for monitoring laboratory reactions. I would think that it would be quite difficult capturing a sample without one.