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STN is a protected designation of Slovak national technical standards.
Butt-welding pipe fittings. Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
WITHDRAWN published on 1.8.2008
Selected format:Piping. T- and Y-fittings. Technical delivery code
Standard published on 1.9.1973
Selected format:Steel threaded pipe fittings
Standard published on 1.7.2002
Selected format:Piping. Weld-on pipe sockets. Technical delivery rules
Standard published on 1.3.1968
Selected format:Piping. Weld-on pipe sockets. Technical delivery rules
Change published on 1.7.1974
Selected format:Piping. Weld-on pipe sockets, PN 40 to PN 250
Standard published on 1.9.1988
Selected format:Piping. Reducers. Technical delivery rules
Standard published on 1.7.1975
Selected format:Piping. Reducers, I.D. 20 to 350, NP 40 to 100
Standard published on 1.3.1975
Selected format:Piping. Welded reducers, I.D. 400 to 2000, NP 2.5 to 64
Standard published on 1.3.1975
Selected format:Piping. Pipe bends, smooth and folded. Technical delivery rules
WITHDRAWN published on 1.9.1973
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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