SOME MONTHS ago, The Institute of Paper Chemistry, in cooperation with a large manufacturer of pipe and fittings, undertook to develop information regarding the nature and the extent of the corrosion problems which exist in the pulp and paper industry. The work was preliminary in character in that it was not aimed immediately at solutions to the existing problems. Its objective was rather to determine the feelings of the industry itself regarding the seriousness of the problems and the desirability of a concerted experimental attack which might aid in providing more information regarding the proper use of existing materials and, in some cases, better materials. From that standpoint, it is considered desirable to present the information which has been gathered. Therefore, it is the object of this paper to discuss, not answers to corrosion problems, but ratli er the opinions of a considerable number of pulp and paper manufacturers regarding...

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