This part of ISO 8536 specifies requirements for types of single-use, gravity feed burette infusion sets of 50 ml, 100 ml and 150 ml nominal capacity for medical use in order to ensure compatibility of use with containers for infusion solutions and intravenous equipment. This part of ISO 8536 also provides guidance on specifications relating to the quality and performance of materials used in infusion sets. NOTE In some countries, national pharmacopoeia or other national regulations are legally binding and take precedence over this part of ISO 8536.