normal vs standard

normal and standard both are nouns.

normal (noun)	standard (noun)
something regarded as a normative example	a basis for comparison; a reference point against which other things can be evaluated
	the ideal in terms of which something can be judged
	a board measure = 1980 board feet
	the value behind the money in a monetary system
	an upright pole or beam (especially one used as a support)
	any distinctive flag

normal (adjective)	standard (adjective)
conforming with or constituting a norm or standard or level or type or social norm; not abnormal	conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind
in accordance with scientific laws	established or well-known or widely recognized as a model of authority or excellence
being approximately average or within certain limits in e.g. intelligence and development	conforming to the established language usage of educated native speakers
forming a right angle	commonly used or supplied
	regularly and widely used or sold