In metalworking formulations, Boron and Boric Acid are generally used as an iron corrosion inhibitor and pH buffering agents. With the increasing awareness many customers are now demanding Boron free metalworking fluids.  In Europe, boric acid and boron are considered as reproductive toxins, but only fluids containing >5.5% free boric acid must carry this “Danger” Label according to regulations.  Oemeta helps us understand new categorization and labeling of products containing boric acid.