Note 24 — 17. RAW MATERIALS FOR TAR-ACID RESINS
Reading edition
Par. 27 (a) (2). Coal-tar products: All distillates (except those provided for in sub-paragraph (b)) of coal tar, blast-furnace tar, oil-gas tar, and water-gas tar, ..., which on being subjected to distillation yield in the portion distilling below two hundred and fifteen degrees centigrade a quantity of tar acids equal to or more than 75 per centum of the original distillate.