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위키백과, 무료 백과사전
국제량체계(International System of Quantities, ISQ)는 물리학과 현대과학에서 보통 사용되는 양으로 구성되며 길이, 질량과 같은 기초적인 수량에서부터 해당 수량간 관계에 이르기까지 다양하다.[a] 이 체계는 국제단위계(SI)의 기반을 두지만[b] 양에 사용되는 측정 단위를 정의하지는 않는다. 수량의 수가 잠재적으로 무한이기 때문에 국체량체계는 태생적으로 불완전하다.
이 체계는 여러 부분의 ISO 표준, ISO/IEC 80000에 기술되고 있으며 2009년 처음 완성되었으나 계속 개정되고 확장되었다.
The system of quantities, including the relations among them the quantities used as the basis of the units of the SI, is named the International System of Quantities, denoted 'ISQ', in all languages. [...] It should be realized, however, that ISQ is simply a convenient notation to assign to the essentially infinite and continually evolving and expanding system of quantities and equations on which all of modern science and technology rests. ISQ is a shorthand notation for the 'system of quantities on which the SI is based', which was the phrase used for this system in ISO 31.
The revised harmonized standard will be known as ISO/IEC 80000, Quantities and Units, in which it is proposed that the quantities and equations used with the SI will be known as the International System of Quantities.
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