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:
- 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.
- 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.
- 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.
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