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Vitreous and porcelain enamels. Glass-lined apparatus for process plants - Quality requirements for apparatus, components, appliances and accessories. Original standard BS EN ISO 28721-1-2011 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 28721-1-2019

Vitreous and porcelain enamels. Glass-lined apparatus for process plants - Designation and specification of resistance to chemical attack and thermal shock. Original standard BS EN ISO 28721-2-2015 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 28721-2-2025

Vitreous and porcelain enamels. Regenerative, enamelled and packed panels for air-gas and gas-gas heat exchangers. Specifications. Original standard BS EN ISO 28763-2011 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 28763-2019

Vitreous and porcelain enamels. Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges. Original standard BS EN ISO 28765-2016 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Machine tools. Safety. Electro-discharge machines. Original standard BS EN ISO 28881-2013 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 28881-2022

Industrial valves. Isolating valves for low-temperature applications - Design, manufacturing and production testing. Original standard BS EN ISO 28921-1-2017 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 28921-1-2022