standardizer vs changer

standardizer and changer both are nouns.

Word	Noun	Adjective	Verb	Adverb
standardizer	Yes	No	No	No
changer	Yes	No	No	No

As nouns, changer is a hypernym of standardizer; that is, changer is a word with a broader meaning than standardizer:

Other hypernyms of standardizer include modifier.

standardizer (noun)	changer (noun)
a person who sets a standard for things to conform to	an automatic mechanical device on a record player that causes new records to be played without manual intervention
	a person who changes something