In simple terms, "commercial quantities" refers to a large amount of something that is considered suitable for business purposes.
Sentences with «commercial quantities»
It is only recently that they have started being produced in commercial quantities. (fieryfoodscentral.com)
A combination of genetic modification and synthetic drug development was used to create the new compound, which so far has only been developed in laboratory, not commercial quantities. (sciencedaily.com)
Oil was discovered in the north of the country in 1981, but not in commercial quantities. (ambergrisCaye.com)