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.
The word ciao (/ Ë tÊ aÊ /; Italian pronunciation: ) is an informal salutation in the Italian language that is used for both hello and goodbye. Originally from the Venetian language, it has entered the vocabulary of English and of many other languages around the world.