Sealed-Container Sampling Tools

Abstract

The writers have developed three inexpensive sealed-container sampling tools. Each of these novel tools allows the user to rapidly drill into a closed container, extract a sample of its contents (gas, liquid, or free-flowing powder), and permanently reseal the point of entry. This is accomplished without exposing the user or the environment to the container contents, even while drilling. All three tools are small, easy to use, and work with any battery-powered hand drill. This allows considerable safety, speed, flexibility, and maneuverability. Almost any kind of container can be sampled (regardless of the material) with wall thicknesses up to 1.3 cm and internal pressures up to eight atmospheres (800 kPa). Samples can be taken from the top, sides, or bottom of a container. The tools also permit the user to rapidly attach plumbing, a pressure relief valve, alarms, or other instrumentation to a container.