By Anne Marie Helmenstine, Ph.D. Primary Standard Definition: A primary standard is a reagent which is very pure, representative of the number of moles the substance contains and easily weighed. Primary standards are typically used in titrations and other analysis techniques as standardization solutions.rimary Standard Definition: A primary standard is a reagent which is very pure, representative of the number of moles the substance contains and easily weighed.
fallo m (plural fallos) failure; verdict, decision; ruling; Verb . fallo. First-person singular present indicative form of fallar.
As you learned in Spanish class, the word oso means bear, the animal. However, oso is commonly used to talk informally about embarrassing, cringe-worthy situations and experiences. The most common usage is Â¡QuÃ© oso!