Wis. Admin. Code § ATCP 139.07 – Poison labeling requirements.

The signal word “POISON”, instead of any other signal word, shall be printed on the label of the following substances at concentrations indicated:

(1) Hydrochloric acid and any preparation containing free or chemically unneutralized hydrochloric acid (HCL) in a concentration of 10% or more.
(2) Sulfuric acid and any preparation containing free or chemically unneutralized sulfuric acid (H²SO⁴) in a concentration of 10% or more.
(3) Nitric acid or any preparation containing free or chemically unneutralized nitric acid (HNO³) in a concentration of 5% or more.
(4) Carbolic acid (C⁶H⁵OH), also known as phenol, and any preparation containing carbolic acid in a concentration of 5% or more.
(5) Oxalic acid and any preparation containing free or chemically unneutralized oxalic acid (H²C²O⁴) in concentration of 10% or more.
(6) Oxalic acid salts, except ferrous oxalate, and any preparation containing any such salt in a concentration of 10% or more.
(7) Acetic acid or any preparation containing free or chemically unneutralized acetic acid (HC²H²O²) in a concentration of 20% or more.
(8) Hypochlorous acid, either free or combined, and any preparation containing the acid in a concentration that will yield 10% or more by weight of available chlorine.
(9) Potassium hydroxide and any preparation containing free or chemically unneutralized potassium hydroxide (KOH), including caustic potash and vienna paste (vienna caustic), in a concentration of 10% or more.
(10) Sodium hydroxide and any preparation containing free or chemically unneutralized sodium hydroxide (NaOH), including caustic soda and lye in a concentration of 10% or more.
(11) Silver nitrate, sometimes known as lunar caustic, and any preparation containing silver nitrate (AgNO³) in a concentration of 5% or more.
(12) Ammonia water and any preparation containing free or chemically uncombined ammonia (NH), including ammonium hydroxide and hartshorn, in a concentration of 5% or more.

History

History: Cr. Register, January, 1978, No. 265, eff. 2-1-78.