IMBSIR 77-1256 Properties of 21 Year Old Coal-Tar Pitch Roofing Membranes: A Comparison with the NBS Preliminary Performance Criteria Robert G. Mathey Walter J. Rossiter, Jr. Center for Building Technology Institute for Applied Technology National Bureau of Standards Washington, D.C. 20234 June 1977 * * U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS
Properties of 21 Year Old Coal-Tar Pitch Roofing Membranes: A Comparison with the NBS Preliminary Performance Criteria
Apr 26, 2023
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