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primary standard

 

Definitions from the Web

Primary Standard

Description:

A primary standard refers to a substance with a precisely known composition used in chemical analysis or calibration. It acts as a reference point against which unknown substances can be measured or compared.

Senses/Usages:

  1. Chemistry:
    • Noun: A primary standard is a substance used to accurately determine the concentration, purity, or other properties of an unknown chemical solution.
    • Sample Sentence: The laboratory chemists prepared a primary standard of potassium permanganate to calibrate the spectrophotometer.
  2. Education:
    • Noun: In education, a primary standard is a benchmark or reference point that establishes the expected level of knowledge or skills for a particular grade level or subject.
    • Sample Sentence: The primary standard for fourth-grade mathematics includes proficiency in multiplication and division.
  3. Standards and Measurements:
    • Noun: Primary standards are used in various fields, such as metrology and manufacturing, to ensure accurate measurements and quality control.
    • Sample Sentence: The company implemented primary standards to guarantee the precision and consistency of their product dimensions.

Possible Related Products:

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