Black Acid-Resistant Varnish BT-783. Open PDF Document Details Document Type Technical Report Publication Date Aug 01, 1979 Accession Number ADA079781 Entities Organizations National Air and Space Intelligence Center Tags Communities of Interest Biomedical DTIC Thesaurus Topics Coatings Foreign Technology Hardness Health Microfiche Petroleum Photographs Plant Oils Public Health Quality Control Resilience Standards Tars Test Methods Translations Transportation Viscosity