04/09/2026
The Standard Recommendation S.R. 66:2015+A1:2026 for wastewater treatment products is now available to purchase at Shop.Standards.ie.
The updated edition amends S.R. 66:2015 and provides guidance on:
✔️ The selection of wastewater treatment plants to treat domestic wastewater for applications for populations up to 50 PE in areas without access to a public sewer
✔️ Minimum performance criteria for wastewater treatment plants tested to I.S. EN 12566 - Parts 1, 3, 4, 6 and 7
✔️ Scaling parameters and sludge storage capacity necessary to achieve the minimum performance recommended for wastewater treatment plants that have been scaled up from the tested plant
🔗 Available now: https://shop.standards.ie/en-ie/standards/s-r-66-2015-a1-2026-878909_saig_nsai_nsai_4016864/