Wednesday , May 12 2021

"Specification" announces historical changes in the definition of international units of measurement



During his participation in the General Conference of Weights and Measures held in France

The Saudi Standardization, Metrology and Quality Organization announced the approval of the General Conference of Weights and Metrology held in France to redefine the four basic units of the international system of units, kilograms, kalvans, moles and amperes.

Saudi Arabia has participated in an official delegation headed by the governor of the Saudi Organization for Standardization, Metrology and Quality, or Dr. Saad Othman Al Qasabi, and the delegation approved the modifications.

Al-Qasabi said that the international system of units of measurement, which Saudi Arabia voted today in Paris during the General Conference on Weights and Measures, will enter into force on May 20, 2019 on World Meteorological Day, considering that today, on 16 November 2018, One of the most important historical days for specialists in metrology and calibration.

He noted that the modifications adopted by the Conference were essentially aimed at creating fixed values ​​that would not change or would be affected over time by units of kilograms grams, mole, kelvin, ampere.

The unit of kilograms has been redefined by measuring the Planck constant, a natural constant that does not change in time and equals 6.62607015 × 10-34 g / s. The Kingdom accepted this definition as a full member of the MTR International Convention.

The Kingdom also agreed to redefine the amperes unit to measure the electrical current based on its electron measurement of 1,602 176 634 × 10-9 pigeons. He also agreed to redefine the Kelvin unit for temperature measurement in terms of the Boltzmann constant instead of the previous definition, Waterproof.

The Conference agreed that the value of Boltzmann's constant would be 1,380 649 x 10-23 g / kg and that the bulk unit would be redefined to measure the quantities of chemicals in a constant direction and would be equal to 6,002 x 14076 x 23 per mole, It does not change over time.

"Specification" announces historical changes in the definition of international units of measurement


Previously

The Saudi Standardization, Metrology and Quality Organization announced the approval of the General Conference of Weights and Metrology held in France to redefine the four basic units of the international system of units, kilograms, kalvans, moles and amperes.

Saudi Arabia has participated in an official delegation headed by the governor of the Saudi Organization for Standardization, Metrology and Quality, or Dr. Saad Othman Al Qasabi, and the delegation approved the modifications.

Al-Qasabi said that the international system of units of measurement, which Saudi Arabia voted today in Paris during the General Conference on Weights and Measures, will enter into force on May 20, 2019 on World Meteorological Day, considering that today, on 16 November 2018, One of the most important historical days for specialists in metrology and calibration.

He noted that the modifications adopted by the Conference were essentially aimed at creating fixed values ​​that would not change or would be affected over time by units of kilograms grams, mole, kelvin, ampere.

The unit of kilograms has been redefined by measuring the Planck constant, a natural constant that does not change in time and equals 6.62607015 × 10-34 g / s. The Kingdom accepted this definition as a full member of the MTR International Convention.

The Kingdom also agreed to redefine the amperes unit to measure the electrical current based on its electron measurement of 1,602 176 634 × 10-9 pigeons. He also agreed to redefine the Kelvin unit for temperature measurement in terms of the Boltzmann constant instead of the previous definition, Waterproof.

The Conference agreed that the value of Boltzmann's constant would be 1,380 649 x 10-23 g / kg and that the bulk unit would be redefined to measure the quantities of chemicals in a constant direction and would be equal to 6,002 x 14076 x 23 per mole, It does not change over time.

November 16th

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During his participation in the General Conference of Weights and Measures held in France

The Saudi Standardization, Metrology and Quality Organization announced the approval of the General Conference of Weights and Metrology held in France to redefine the four basic units of the international system of units, kilograms, kalvans, moles and amperes.

Saudi Arabia has participated in an official delegation headed by the governor of the Saudi Organization for Standardization, Metrology and Quality, or Dr. Saad Othman Al Qasabi, and the delegation approved the modifications.

Al-Qasabi said that the international system of units of measurement, which Saudi Arabia voted today in Paris during the General Conference on Weights and Measures, will enter into force on May 20, 2019 on World Meteorological Day, considering that today, on 16 November 2018, One of the most important historical days for specialists in metrology and calibration.

He noted that the modifications adopted by the Conference were essentially aimed at creating fixed values ​​that would not change or would be affected over time by units of kilograms grams, mole, kelvin, ampere.

The unit of kilograms has been redefined by measuring the Planck constant, a natural constant that does not change in time and equals 6.62607015 × 10-34 g / s. The Kingdom accepted this definition as a full member of the MTR International Convention.

The Kingdom also agreed to redefine the amperes unit to measure the electrical current based on its electron measurement of 1,602 176 634 × 10-9 pigeons. He also agreed to redefine the Kelvin unit for temperature measurement in terms of the Boltzmann constant instead of the previous definition, Waterproof.

The Conference agreed that the value of Boltzmann's constant would be 1,380 649 x 10-23 g / kg and that the bulk unit would be redefined to measure the quantities of chemicals in a constant direction and would be equal to 6,002 x 14076 x 23 per mole, It does not change over time.


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