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.
Voseo (. [boËse.o]) is the use of vos as a second person singular pronoun, including its conjugational verb forms in many dialects of Spanish. In dialects that have it, it is used either instead of tu, tÃº or alongside. It use of tu tÃº is known. as tuteo