(a) Hydrochloric acid and any preparation containing free or chemically unneutralized hydrochloric acid (HCl) in a concentration of ten percent (10%) or more;

(b) Sulphuric acids and any preparation containing free or chemically unneutralized sulphuric acid (HSO) in a concentration of ten percent (10%) or more;

(c) Nitric acid or any preparation containing free or chemically unneutralized nitric acid (HNO) in a concentration of five percent (5%) or more;

(d) Carbolic acid (CHOH), otherwise known as phenol, and any preparation containing carbolic acid in a concentration of five percent (5%) or more;

(e) Oxalic acid and any preparation containing free or chemically unneutralized oxalic acid (HCO) in a concentration of ten percent (10%) or more;

(f) Any salt of oxalic acid, other than cerium oxalate, and any preparation containing any such salt in a concentration of ten percent (10%) or more;

(g) Acetic acid or any preparation containing free or chemically unneutralized acetic acid (HCHO) in a concentration of twenty percent (20%) or more;

(h) Hypochlorous acid, either free or combined, and any preparation containing the same in a concentration so as to yield ten percent (10%) or more by weight of available chlorine, excluding calx chlorinata, bleaching powder, and chloride of lime;

(i) Potassium hydroxide and any preparation containing free or chemically unneutralized potassium hydroxide (KOH), including caustic potash and Vienna paste, in a concentration of ten percent (10%) or more;

(j) Sodium hydroxide and any preparation containing free or chemically unneutralized sodium hydroxide (NaOH), including caustic soda and lye, in a concentration of ten percent (10%) or more;

(k) Silver nitrate, sometimes known as lunar caustic, and any preparation containing silver nitrate (AgNO) in a concentration of five percent (5%) or more, and

(l) Ammonia water and any preparation yielding free or chemically uncombined ammonia (NH), including ammonium hydroxide and “hartshorn” in a concentration of five percent (5%) or more.