Micrographics - Microfilming of documents on 16 mm and 35 mm silver-gelatin type microfilm - Operating procedures; identical with ISO 6199:1991— 14 стр.
Plans for public utilities, water resources management and for long-distance pipelines; Maps and plans for water engineering, flood and coastal protection— 13 стр.
Microfilming of documents; technical proceeding of recording for documents written by hand, and for purposes in documentation, library, and archives— 3 стр.
Plans for Public Utilities, Water Resources and Long-distance Lines; Plans for Long-distance Pipelines, Technical Regulation of the DVGW (German Gas and Water Engineers Association)— 11 стр.