Metallic tube connections for fluid power and general use - Test methods for hydraulic fluid power connections (ISO 19879:2021); German version EN ISO 19879:2021— 30 стр.
Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 4: Quality requirements for glass-lined flanged steel pipes and flanged steel fittings (ISO 28721-4:2015); German version EN ISO 28721-4:2015— 12 стр.
Petroleum and natural gas industries - Compact flanged connections with IX seal ring (ISO 27509:2020); English version EN ISO 27509:2020, only on CD-ROM— 124 стр.