Section 325.5054. Thorium used in certain articles.

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A person is exempt from this part to the extent that he receives, possesses, uses or transfers any quantity of thorium contained in:

(a) Incandescent gas mantles.

(b)   Vacuum tubes.

(c)   ) Welding rods.

(d)   Electric lamps for illuminating purposes if each lamp does not contain more than 50 milligrams of thorium.

(e)   Germicidal lamps, sunlamps and lamps for outdoor or industrial lighting if each lamp does not contain more than 2 grams of thorium.

(f)    Rare earth metals and compounds, mixtures and products containing not more than 0.25% by weight thorium, uranium or any combination of these.

History: 1954 ACS 85, Eff. Dec. 3, 1975.

                    
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