The International Electrotechnical Commission (IEC) has published 62899-202:2016(E), a standard for “Printed electronics – Part 202: Materials – Conductive ink.” The first edition can be purchased on the IEC’s webstore.
Description from the IEC’s website:
IEC 62899-202:2016(E) defines the terms and specifies the standard methods for characterisation and evaluation. This International Standard is applicable to conductive inks and conductive layer that are made from conductive inks.
