2.4 International Metrological Infrastructure
21
and the National Institute for Standardization. In addition, the network of calibration
laboratories carrying out the relevant work in terms of maintaining the metrological
status of the instruments, standards, and measurements is also necessary.
The National Metrology Institute (NMI) in the country, is usually appointed by
decision of the competent authority of the state, and its task is to ensure the uniformity of measurement in the country through the development and maintenance
of national measurement standards and the transfer of these units. The next level in
the hierarchy is the calibration laboratories, ensuring the highest level of accuracy
of measurements in the country, comparable to the primary laboratories operating at
the NMI. Accredited calibration laboratories whose technical competence, quality
and impartiality have been confirmed by an Accreditation Body in the country play
a crucial role in this system.
The NMI is an essential partner in the global metrological infrastructure and
occupies the highest position in the national metrology of economically developed
countries. Its main task is to link the national system with the worldwide measurement
system.
2.4.5 Summary
The main aim of building and maintaining the metrological infrastructure on a global
level is to sustain the highest standards in respect to traceability, accuracy and reliability of measurements used in industry, transport, communication, trade, medicine
and health protection, as well as in many other disciplines in science and engineering.
This aim is realized chiefly by multilateral collaboration on international, regional
as well as national levels in the area of metrology (Table 2.3).
This aim encompasses several commonly accepted tasks:
• Acceptance the of international system of units, SI;
• Establishing and maintaining standards of units;
• Collaboration with NMIs;
• Accreditation of testing and calibration laboratories;
• Activity of standardization bodies;
• Enforcing the common implementation of legal metrology.
21
and the National Institute for Standardization. In addition, the network of calibration
laboratories carrying out the relevant work in terms of maintaining the metrological
status of the instruments, standards, and measurements is also necessary.
The National Metrology Institute (NMI) in the country, is usually appointed by
decision of the competent authority of the state, and its task is to ensure the uniformity of measurement in the country through the development and maintenance
of national measurement standards and the transfer of these units. The next level in
the hierarchy is the calibration laboratories, ensuring the highest level of accuracy
of measurements in the country, comparable to the primary laboratories operating at
the NMI. Accredited calibration laboratories whose technical competence, quality
and impartiality have been confirmed by an Accreditation Body in the country play
a crucial role in this system.
The NMI is an essential partner in the global metrological infrastructure and
occupies the highest position in the national metrology of economically developed
countries. Its main task is to link the national system with the worldwide measurement
system.
2.4.5 Summary
The main aim of building and maintaining the metrological infrastructure on a global
level is to sustain the highest standards in respect to traceability, accuracy and reliability of measurements used in industry, transport, communication, trade, medicine
and health protection, as well as in many other disciplines in science and engineering.
This aim is realized chiefly by multilateral collaboration on international, regional
as well as national levels in the area of metrology (Table 2.3).
This aim encompasses several commonly accepted tasks:
• Acceptance the of international system of units, SI;
• Establishing and maintaining standards of units;
• Collaboration with NMIs;
• Accreditation of testing and calibration laboratories;
• Activity of standardization bodies;
• Enforcing the common implementation of legal metrology.