… natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight. …
Explanatory notes
… boric acid containing not more than 85 % of H 3 BO 3 calculated on the dry weight. This heading covers only … excludes boric acid containing more than 85 % of H 3 BO 3 calculated on the dry weight ( heading 28.10 ). The natural …