Primary Standards - National calibration laboratories

Q.  Which among the following forms the basis of ultimate standards and are maintained by national calibration laboratories?
- Published on 24 Sep 15

a. Primary standards
b. Secondary standards
c. Industry standards
d. None of the above

ANSWER: Primary standards

Related Content

 

    Discussion

  • Satyawati Patil   -Posted on 06 Oct 15
    Standards play a significant role in assigning the technical specifications. These specifications are assigned in coordination to manufactures and users with an intention of beneficial approach.

    The standards which is recognized as the most precise, traceable and well documented from the measurement point of view & does not reference other standard is called as 'Primary Standard'.

    As the name indicates, they constitute the basic or fundamental form of ultimate standards & hence maintained by National Calibration Laboratories like NIST in U.S.

    Secondary standards are derived by taking several primary standards into account, whereas industry standards provide a compromise between open and the proprietary standards with its integration in addition to faster product development.

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲