SUBHEADING NOTES
For the purposes of sub-heading 2852 10, the expression "chemically" means all organic or inorganic compounds of mercury meeting the requirements of clauses (a) to (e) of Note Chapter 28 or clauses (a) to (h) of Note 1 to Chapter 29.
SUPPLIMENTRY NOTES
Sub-heading 2804 40 includes, liquefied or solidified gas.