1. ISO 14971:2007 Medical devices—Application of risk management to medical devices
2. ISO 15223-1:2016 Medical devices—Symbols to be used with medical device labels labelling and information to be supplied—Part 1: General requirements
3. ISO 15223-2:2010 Medical devices—Symbols to be used with medical device labels labelling and information to be supplied—Part 2: Symbol development selection and validation
4. IEC 60601-2-16:2012 Medical electrical equipment—Part 2-16: Particular requirements for basic safety and essential performance of haemodialysis haemodiafiltration and haemofiltration equipment
5. Rice E.W., Baird A.B., Eaton A.D. Standard Methods for the Examination of Water and Wastewater. 23rd Edition, American Public Health Association, American Water Works Association, Water Environment Federation. 2017