March 07, 2021

Chart Recorders and General Tech services

Chart recorders have long been used at manufacturing plants to keep records of process factors such as pressure, flow, humidity and temperature. In laboratories, chart recorders have been used to keep graphic records of scientific data compiled through testing and diagnostics. Today, as the technology competes with data loggers, traditional chart recorders are still the preferred option for uses in remote, powerless settings and within working arsenals that lack complex computing systems.      ...

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January 31, 2021


        Mitutoyo was founded by Japanese entrepreneur Yehan Numata in 1934. Mitutoyo is one of the world's leading manufacturer of precision measuring equipment, offering a huge range of products from micrometers, callipers, and dial gauges to hardness testers, vision measuring systems, and 3D coordinate measuring machines.   Mitutoyo led the world in the development of output gages, interfaces, data collectors, and analysis software to take advantage of new metrological science...

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December 29, 2020

Accuracy, Error, Tolerance and Uncertainity

       Calibration involves so many terms that we always use or read during the measurement process. Knowledge in these terms is the key to proper understanding and execution of measurement results which is an important part of calibration awareness training.   In this blog, we will be discussing accuracy, error, tolerance, and uncertainty and their relationships.     As per JCGM 200 and 106: 2012, below are the actual definitions: 1.    Accuracy = clos...

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November 24, 2020

How Portable Appliance Testing saves lives and money?

  WHAT IS PAT(Portable Appliance Testing) TESTING?     Any electrical equipment that is in an installation that is portable (whether permanently connected or not by plug and to a socket outlet) should be inspected and tested to be in accordance with the regulations set by governing bodies. But what exactly deems a piece of electrical equipment as ‘portable?’     In the IET code of practice, they define a portable appliance as: “An appliance of not more than ...

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October 14, 2020

The Importance of Choosing An Accredited Calibration Laboratory

  Accreditation provides the underlying assurance that organizations are adhering to internationally recognized standards. For calibration and testing laboratories, that standard is ISO/IEC 17025. Accrediting bodies use ISO 17025 standard to specifically assess factors such as, staff competence, validity of test methods, traceability of measurements and calibrations to national standards, appropriateness and conditions of testing environment, sampling and handling of test items, maintenance of equipment ...

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September 22, 2020

What is ISO 17025 standard and how is it similar and different from ISO 9001?

 Laboratory sampling, testing, and conformity assessment are crucial enabling factors for technology and trade. ISO/IEC 17025 assists in the harmonization of procedures and standard methods, facilitates cooperation between laboratories and other bodies, and promotes the acceptance of results between countries.     ISO/IEC 17025:2017 is the international standard that sets out the general requirements for the competent, impartial, and consistent operation of laboratories. It specifies the activ...

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September 06, 2020

CALIBRATION GLOSSARY - Short glossary of calibration related terminologies

A – Z of Calibration   The field of calibration has a huge vocabulary describing the methods, parameters, equipment, and processes used to verify the measurement accuracy of masters, gages, and other measuring instruments. The following glossary of definitions includes the most commonly used terms.   Absolute Pressure: Actual pressure relative to a perfect vacuum. Absolute Temperature: The temperature measured from absolute zero as in the Kelvin and Rankine scales. Absolute viscosity: The...

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June 24, 2020


In the world of measurement technology, calibration is the documented comparison of the measurement device to be calibrated against a traceable reference device. The reference standard may be also referred to as a “calibrator.” Logically, the reference is more accurate than the device to be calibrated. The reference device should be also calibrated traceably. Calibration of your measuring instruments has two objectives It checks the accuracy of the instrument it determines the traceability of...

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