Why are there two EPB standards on indoor environmental input data: ISO 17772-1 and EN 16798-1?
EN 16798-1 has been developed by CEN/TC 156 as one of the EPB standards under the EU mandate (M/480) to CEN. It was approved and published in May 2019. ISO 17772-1 has been developed, parallel with EN 16798-1, as an ISO document. This standard was approved and published in 2018. Similarly, EN/TR 16798-2 and ISO/TR […]