Kärnförvaringsrör

Kärnförvaringsrör, sometimes referred to as sample tubes or core barrels, are specialized containers used in various scientific and industrial fields, particularly in geology, environmental science, and archaeology. Their primary function is to collect and preserve intact samples of soil, rock, sediment, or other subsurface materials. These tubes are typically cylindrical and constructed from materials like metal, plastic, or sometimes cardboard, depending on the intended use and the nature of the sample.

The design of a kärnförvaringsrör often includes a mechanism for sealing the ends to prevent contamination or drying out of the sample during transport and storage. In geological and geotechnical investigations, they are used with drilling equipment to extract core samples, which provide a continuous record of the subsurface strata. This allows for detailed analysis of the material's composition, structure, and properties. Archaeologists might use similar tubes to retrieve soil samples that could contain artifacts or evidence of past human activity.

Environmental sampling often employs kärnförvaringsrör to collect samples for testing pollutants, such as hydrocarbons or heavy metals, in soil or groundwater. The integrity of the sample is crucial for accurate laboratory analysis. The length and diameter of these tubes can vary significantly, tailored to the specific sampling requirements and the type of drilling or excavation equipment being used. Proper labeling and documentation of the collected samples are essential for maintaining a clear chain of custody and ensuring the reliability of subsequent research or testing.