BS ISO 21939-1-2019 A method to calculate and express energy consumption of industrial wastewater treatment for the purpose of water reuse Part 1: Biological processes

BS ISO 21931-2-2019 SUSTAINABILITY IN BUILDINGS AND CIVIL ENGINEERING WORKS - FRAMEWORK FOR METHODS OF ASSESSMENT OF THE ENVIRONMENTAL, SOCIAL AND ECONOMIC PERFORMANCE OF CONSTRUCTION WORKS AS A BASIS FOR SUSTAINABILITY ASSESSMENT PART 2: CIVIL ENGINEERIN ISO 21931-1-2022 Sustainability in buildings and civil engineering works — Framework for methods of assessment of the environmental, social and economic performance of construction works as a basis for sustainability assessment — Part 1: Buildings ISO 21930-2007 Sustainability in building construction — Environmental declaration of building products BS ISO 21940-1-2019 Mechanical vibration — Rotor balancing Part 1: Introduction BS ISO 21940-11-2016 + A1-2022 BS ISO 21940-12-2016 Mechanical vibration — Rotor balancing Part 12: Procedures and tolerances for rotors with flexible behaviour