BS ISO 20816-1-2016 Mechanical vibration — Measurement and evaluation of machine vibration Part 1: General guidelines

BS ISO 20814-2019 Nanotechnologies — Testing the photocatalytic activity of nanoparticles for NADH oxidation BS ISO 20813-2019 Molecular biomarker analysis — Methods of analysis for the detection and identification of animal species in foods and food products (nucleic acid-based methods) — General requirements and definitions ISO 20809-2017 Essential oil of cypress (Cupressus sempervirens L.) BS ISO 20816-2-2017 Mechanical vibration — Measurement and evaluation of machine vibration Part 2: Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/mi BS ISO 20816-4-2018 Mechanical vibration — Measurement and evaluation of machine vibration Part 4: Gas turbines in excess of 3 MW, with fluid-film bearings BS ISO 20816-5-2018 Mechanical vibration - Measurement and evaluation of machine vibration Part 5: Machine sets in hydraulic power generating and pump-storage plants