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STN is a protected designation of Slovak national technical standards.
Flanged pipe joints. Oval necked threaded flanges, NP 6
Standard published on 1.6.1965
Selected format:Flanged piping joints. Necked oval threaded flanges, NP 16
Standard published on 1.6.1965
Selected format:Flanged piping joints. Oval blind flanges, NP 6
Standard published on 1.6.1965
Selected format:Flanged piping joints. Oval blind flanges, NP 16
Standard published on 1.6.1965
Selected format:Piping. Screws and nuts for flanged pipeline joints. Application
WITHDRAWN published on 1.12.1987
Selected format:Flanges and their joints. Bolting. Part 1: Selection of bolting
Standard published on 1.1.2002
Selected format:Flanges and their joints. Bolting. Part 2: Classification of bolt materials for steel flanges, PN designated
Standard published on 1.6.2003
Selected format:Flanges and their joints. Bolting. Part 3: Classification of bolt materials for steel flanges, class designated
Standard published on 1.4.2006
Selected format:Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
Standard published on 1.8.2021
Selected format:Flanges and their joints - Bolting - Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 2014/68/EU
Correction published on 1.11.2022
Selected format:Latest update: 2026-11-03 (Number of items: 2 209 039)
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