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.
from Spanish or Portuguese mulato meaning octoroon, sambo from mulo mule > hybrid. in Spanish, refers to a person of mixed European-African descent. mustang from mustango, mestengo, mestencoor mesteÃ±o, without known master or owner (archaic)