assay
🇺🇸
/əˈseɪ/
🇬🇧
/əˈseɪ/
To examine a substance, like metal or chemicals, to find out how pure it is.
Scientists will assay the water sample to check for any harmful substances.
The process of examining a substance, like metals or chemicals, to find out how pure it is.
The assay of the ore showed that it contained a high percentage of gold.