Imagine we just finished the calibration of a resistor and the result of our measurement was 10.01 kΩ. Are we sure that this is the true value of the resistor? The answer is simple: No! We can never be 100% confident that we measured the true value. The true value could only be obtained by […]
UKAS (United Kingdom Accreditation Service) is recognized by the British government to assess the competence of organizations that provide certification, testing, inspection and calibration services, against internationally agreed standards.
We all know that test equipment is used to define a measurement of a parameter. Whether it is the temperature level of a pipe, the electrical charge running through a wire or even the moisture content in a building’s walls, specialist test equipment devices are able to accurately determine a measurement specific to that application.
If someone enters the term “ISO 17025” in Google, they would probably find out that ISO 17025 is an International Standard with the title “General requirements for the competence of testing and calibration laboratories”. But what does this mean in practice?
Everything has a value. We plan our lives and make commercial exchanges based on values. A pound of meat bought from two different butcher’s shops must contain the same amount of food. A flange bought by a supplier must fit to the flange purchased by a different supplier. A 14 karat gold ring must contain […]
Calibration is a procedure that ensures that a measurement by an instrument is a true value within a tolerance limit generally given by the manufacturer. To accurately evaluate that this value is correct, the tester is compared with a calibrated reference instrument usually of much better accuracy. This confirms the accuracy and reliability of the […]
Both gas meters and gas leak detectors are vital tools for ensuring that dangerous gasses are kept in check and people are alerted to the presence of gas in the environment. Standard gas meters are used to gain an overall measurement of gas usage in installations, whereas gas leakage detectors – quite affectionately known commonly […]
Using a device or series of devices that aren’t correctly calibrated could be disastrous for a project. The success or failure of the project may depend on such vital factors as tiny differences in measurements and the slightest changes to the temperature of a substance or the centimeters in distances could have an effect on the overall […]
With specialist devices available on the market we can measure just about anything. Whether it’s registering the effects of noise in the street, testing electrical current levels, measuring the amount of water flowing through a pipe or the chemical composition of a substance there more than likely exists a product on the market for measuring […]
The accuracy of measurements provided by even the most sophisticated instruments can drift over time. This is why they have to be calibrated and recalibrated not only at the intervals specified by their manufacturers, but also when working conditions change. These could be times when the device has been subject to more movement in a […]