Technical English language

22. Calibration of tanks for petroleum products.
Calibration of containers designed for the preservation and transportation of petroleum products is carried out in order to control tanks. Due to the calibration of tanks for petroleum products, petroleum products located on the enterprise’s territory are counted.
Prior to calibration, the volume of the required reservoir is determined, a table of its calibration is compiled. In the case of long-term operation of the tank, it should be thoroughly cleaned before the necessary measurements.

23. Calibration of tanks of fuels and lubricants
Measurement is allowed only to those organizations that have the appropriate accreditation to perform such work. According to the results of the work performed, the customer receives a certificate - a document confirming the obtained results of the measurements.
Calibration of tanks for petroleum products is carried out in one of two ways: geometric and volumetric. The most accurate is volumetric, as in the course of its implementation the possible influence of many factors on the deformation of the vessel and the change in its dimensions is taken into account. Volumetric calibration is carried out at gas stations for fuel tanks, horizontal tanks of fuel and lubricants, vertical tanks at oil depots.
The geometric method is suitable for calibrating cylindrical tanks regardless of their performance (vertical, horizontal), reinforced concrete tanks, tanks located and belonging to process and main oil pipelines. Volumetric calibration of containers occurs through special software and measuring systems. For its use transported laboratories for measurements.
The use of modernized installations for measuring makes it possible to obtain high-precision results using the volumetric method.

24. Automated calibration of tanks for petroleum products
Automated process control speeds it up significantly, reducing downtime. Calibration of containers facilitates the implementation of the subsequent necessary monitoring of the amount of petroleum products placed in tanks.
Graduation gives an indication of how much oil in the tank was consumed over a certain period of time, as well as the remaining part.
Geometric calibration is performed by determining the linear dimensions of the vessel as well as the structures located inside. All measurements are performed using rulers, levels, tape measures and other similar devices.
The main purpose of calibration is to exercise control over the internal accounting of refined products. In order to determine the amount of petroleum product placed in the tank, the necessary measure is taken to calibrate each tank with the mandatory application of a calibration table in steps of one centimeter. With the help of such a device you can easily and without any effort determine the amount of product in the tank only by the height of the liquid poured.
The years of operation leave their mark on the fuel tanks, their deformation occurs. Significant changes in the shape and size of the tank can lead to significant shortages of petroleum products. Modern calibration systems carry out the marking of containers with high accuracy. Temporary corrosion and deformation affect not only the accounting of fuel materials, but also the appearance of leakages in tanks. This is the cause of the leakage of fuels and lubricants.
It is possible to detect any damage to the vessel in time by applying the method of acoustic monitoring of the state of the tanks, using penetrating substances, as well as the visual-measuring method.