STB PDF

Amendment 1 - Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 2- Pipes. Original standard UNE-EN 12201-2-2012 + A1-2020 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 12201-2-2024

Wastewater treatment plants Part 11- General data required. Original standard UNE-EN 12255-11-2001 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 12255-11-2023

Wastewater treatment plants Part 13- Chemical treatment Treatment of wastewater by precipitation/flocculation. Original standard UNE-EN 12255-13-2003 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 12255-13-2024

Wastewater treatment plants Part 5- Lagooning processes. Original standard UNE-EN 12255-5-2000 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 12255-5-2024

Wastewater treatment plants Part 7- Biological fixed-film reactors. Original standard UNE-EN 12255-7-2003 in PDF full version. Additional info + preview on request

Document status: Active

Wastewater treatment plants Part 8- Sludge treatment and storage. Original standard UNE-EN 12255-8-2001 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN 12255-8-2025