Sampling cylinders are usually made of stainless steel, which is resistant to high temperatures and corrosion. It has a sealed lid at the top and a valve at the bottom that controls the inflow and exit of gases. On the inside of the cylinder, there is usually an inner lining to protect the cylinder from the sample.
So, what is the main purpose of a sampling cylinder?In fact, sampling cylinders are mainly used to collect and store various gas samples. In our laboratories, it is often necessary to monitor airborne pollutants or to analyze gases produced in industrial processes. At this point, we use a sampling cylinder to collect these gas samples.
The process of sampling is actually quite simple. First, we will take the sampling cylinder to the place where it needs to be sampled, and then open the valve to let the gas into the cylinder. When the cylinder is filled, we close the valve and record the time, place and condition of the sample with a special label. Finally, we take the sample cylinders back to the lab for further analysis.
There are many advantages to the use of sampling cylinders. First of all, it has a very good sealing performance to ensure that the sample will not leak during transportation. Secondly, its material is very stable and will not react chemically with the sample, ensuring the authenticity of the sample. Finally, it usually has a large capacity and can store a large number of samples, making it ideal for long sampling periods.
However, there are some caveats to sampling cylinders. For example, we need to wash and dry the cylinders before use to prevent contamination of the sample. In addition, we also need to avoid direct sunlight and high temperatures when storing samples to prevent changes in the properties of the samples.