DIN/TS 19689:2022 Water conditioning equipment inside buildings - Reduction in concentration of microorganisms - Requirements for design, safety and testing / Note: This standard is part of the DVGW body of rules.
1970DIN/TS 19689:2022 Water conditioning equipment inside buildings - Reduction in concentration of microorganisms - Requirements for design, safety and testing / Note: This standard is part of the DVGW body of rules.