… Other slag and ash, including seaweed ash (kelp); ash and residues from the …
Explanatory notes
… 26.21 ‑ O ther slag and ash, including seaweed ash (kelp); ash and residues from the … ( except in the case of basic slag). The products covered include : (1) Ash and clinker of mineral origin produced … such as embankments, highway ramps and bridge abutments. It includes : (a) Fly ash – finely divided particles entrained …