In this chapter, unless the context or subject matter otherwise requires,

     (1) The term "dangerous caustic or corrosive substance" means each and all of the acids, alkalis, and substances named below: (a) Hydrochloric acid and any preparation containing free or chemically unneutralized hydrochloric acid (HCl) in a concentration of ten percent or more; (b) sulphuric acid and any preparation containing free or chemically unneutralized sulphuric acid (H₂SO₄) in concentration of ten percent or more; (c) nitric acid or any preparation containing free or chemically unneutralized nitric acid (HNO₃) in a concentration of five percent or more; (d) carbolic acid (C₆H₅OH), otherwise known as phenol, and any preparation containing carbolic acid in a concentration of five percent or more; (e) oxalic acid and any preparation containing free or chemically unneutralized oxalic acid (H₂C₂O₄) in a concentration of ten percent or more; (f) any salt of oxalic acid and any preparation containing any such salt in a concentration of ten percent or more; (g) acetic acid or any preparation containing free or chemically unneutralized acetic acid (HC₂H₃O₂) in a concentration of twenty percent or more; (h) hypochlorous acid, either free or combined, and any preparation containing the same in a concentration so as to yield ten percent 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 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 or more; (k) silver nitrate, sometimes known as lunar caustic, and any preparation containing silver nitrate (AgNO₃) in a concentration of five percent or more, and (l) ammonia water and any preparation yielding free or chemically uncombined ammonia (NH₃), including ammonium hydroxide and "hartshorn", in a concentration of five percent or more.

     (2) The term "misbranded parcel, package, or container" means a retail parcel, package, or container of any dangerous caustic or corrosive substance for household use, not bearing a conspicuous, easily legible label or sticker, containing (a) the name of the article; (b) the name and place of business of the manufacturer, packer, seller, or distributor; (c) the word "POISON", running parallel with the main body of reading matter on said label or sticker, on a clear, plain background of a distinctly contrasting color, in uncondensed gothic capital letters, the letters to be not less than twenty-four point size, unless there is on said label or sticker no other type so large, in which event the type shall be not smaller than the largest type on the label or sticker, and (d) directions for treatment in case of accidental personal injury by the dangerous caustic or corrosive substance; PROVIDED, That such directions need not appear on labels or stickers on parcels, packages or containers at the time of shipment or of delivery for shipment by manufacturers or wholesalers for other than household use. PROVIDED FURTHER, That this chapter is not to be construed as applying to any substance subject to the chapter, sold at wholesale or retail for use by a retail druggist in filling prescriptions or in dispensing, in pursuance of a prescription by a physician, dentist, or veterinarian; or for use by or under the direction of a physician, dentist, or veterinarian; or for use by a chemist in the practice or teaching of his profession; or for any industrial or professional use, or for use in any of the arts and sciences.

[1929 c 82 § 1; RRS § 2508-1. Formerly RCW 69.36.010 and 69.36.020, part.]