Linseed oil, white lead, zinc oxide, turpentine; standards; sale
Wis. Stat. § 100.186
in effect(1) No person shall sell as and for “raw flaxseed oil” or “raw linseed oil” any oil unless it is obtained from the seeds of the flax plant and unless it fulfills all the requirements for linseed oil laid down in the U.S. Pharmacopoeia; or as and for “boiled linseed oil” or “boiled flaxseed oil” any oil unless it has been prepared by heating pure raw linseed oil with or without the addition of not to exceed 4 percent of drier to a temperature not less than 225 degrees Fahrenheit. It is a violation of this section if said boiled linseed oil does not conform to the following requirements: First, its specific gravity at 60 degrees Fahrenheit must be not less than 935 thousandths and not greater than 945 thousandths; 2nd, its saponification value (koettstorfer figure) must not be less than 186; 3rd, its iodine number must not be less than 160; 4th, its acid value must not exceed 10; 5th, the volatile matter expelled at 212 degrees Fahrenheit must not exceed one-half of one percent; 6th, no mineral or other foreign oil or free rosin shall be present, and the amount of unsaponifiable matter as determined by standard methods shall not exceed 2.5 percent; 7th, the film left after flowing the oil over glass and allowing it to drain in a vertical position must dry free from tackiness in not to exceed 20 hours, at a temperature of about 70 degrees Fahrenheit.
(2) Nor shall any person sell any raw or boiled linseed oil except under its true name, and unless each tank car, tank, barrel, keg, can or vessel of such oil has distinctly and durably marked thereon in ordinary bold-faced capital letters, not smaller than 60-point type, the words “Pure Linseed Oil — Raw” or “Linseed Oil — Boiled,” and the name and address of the manufacturer.
(3) Linseed oil compounds designed to take the place of raw or boiled linseed oil, whether sold under invented proprietary names or titles, or otherwise, shall bear conspicuously upon the containing receptacle in which the same is sold, in ordinary bold-faced capital letters not smaller than 60-point type, the word “Compound,” followed immediately with the true distinctive names of the actual ingredients in the order of their greater preponderance, in the English language, in plain legible type of the same style, not smaller than 36-point type, in continuous list with no intervening matter of any kind and shall also bear the name and address of the manufacturer.
(4) No person shall sell:
(a) As and for dry white lead any substance other than basic carbonate of lead or basic sulfate of lead;
(b) As and for white lead in oil, any product other than basic carbonate of lead ground in pure linseed oil or basic sulfate of lead ground in pure linseed oil;
(c) Any basic carbonate of lead ground in linseed oil, unless each receptacle containing it has distinctly and durably marked thereon the words, “white lead, basic carbonate, in oil,” and the name and address of the manufacturer or jobber;
(d) Any basic sulfate of lead ground in linseed oil, unless each receptacle containing it has distinctly and durably marked thereon the words “white lead, basic sulfate, in oil,” and the name and address of the manufacturer or jobber;
(e) As and for dry oxide of zinc, or zinc oxide, or zinc white, any substance other than commercially pure oxide of zinc;
(f) As and for oxide of zinc in oil, or zinc oxide in oil, or zinc white in oil, any product other than commercially pure oxide of zinc ground in pure linseed oil;
(g) Any oxide of zinc ground in linseed oil, unless each receptacle containing the same has distinctly and durably marked thereon the words “oxide of zinc in oil” or “zinc oxide in oil” or “zinc white in oil” and the name and address of the manufacturer or jobber.
(5) No person shall sell:
(a) As and for turpentine, spirits of turpentine or oil of turpentine, any article except pure oil of turpentine distilled from the natural gum, dip or scrape of pine trees and unmixed with kerosene or other mineral oil or other foreign substance;
(b) As and for wood turpentine or wood spirits of turpentine any article except the distillates and spirits prepared directly from or by the distillation of the wood of pine trees, and unmixed with kerosene or other mineral oil or other foreign substance;
(c) Any oil of turpentine or wood spirits of turpentine except under its true name, and unless each tank car, tank, barrel, keg, can or vessel of such oil has distinctly and durably marked thereon in ordinary bold-faced capital letters, not smaller than 60-point type, the words “Oil of Turpentine” or “Wood Spirits of Turpentine” and the name and address of the manufacturer or jobber.
Source: WI Statutes (Official Site)URL: https://docs.legis.wisconsin.gov/document/statutes/100.186Fetched: 10/7/2026