Colorimetric Determination of Creosote in Old Poles

An accurate quick colorimetric test to determine how much creosote is left in old poles would greatly simplify maintenance problems for utility companies. A core of wood is removed; the outer 1/2-inch section is ground to fiber and placed in a tube of dimethylformamide (DMF) solvent. The solvent dissolves the creosote from the wood to form a brown solution which is matched with the color of standard solutions corresponding to given pounds of creosote per cubic foot retention. Though refinements are needed, this method shows promise.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member