자유아카데미 고분자화학 입문 3판 솔루션 (Polymer Chemistry An Introduction , Malcolm P.Stevens)
[솔루션] 고분자화학 입문 3판 솔루션 (Polymer Chemistry - An Introduction, Malcolm P.Stevens - 자유아카데미) 입니다. 총 1장부터 18장까지의 솔루션으로 구성되어 있습니다. 공부 할 때 정말 도움이 많이 됬던 자료 입니다. 예습할때나, 복습할때나 그리고 시험기간에 특히 꼭 필요한 자료입니다..^^
[솔루션] 고분자화학 입문 3판 솔루션 (Polymer Chemistry - An Introduction, Malcolm P.Stevens - 자유아카데미) 입니다.
총 1장부터 18장까지의 솔루션으로 구성되어 있습니다.
공부 할 때 정말 도움이 많이 됬던 자료 입니다. 예습할때나, 복습할때나 그리고 시험기간에 특히 꼭 필요한 자료입니다..^^PROBLEM 1.1 FIND: Explain the hierarchy of standards. Explain the term standard. Cite example. SOLUTION
The term standard refers to an object or instrument, a method or a procedure that provides a value of an acceptable accuracy for comparison. A primary standard defines the value of the unit to which it is associated. Secondary standards, while based on the primary standard, are more readily accessible and amenable for use in a calibration. There is a hierarchy of secondary standards: A transfer standard might be maintained by a national standards lab (such as NIST in the United States) to calibrate industrial “laboratory standards”. It is costly and time-consuming to certify a laboratory standard, so they are treated carefully and not used too regularly. A laboratory standard would be maintained by a company to be used to certify a more common in-house reference called the working standard. A working standard would be calibrated against the laboratory standard. The working standar
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