IEC 61987-10:2009(E) provides a method of standardizing the descriptions of process control devices, instrumentation and auxiliary equipment as well as their operating environments and operating requirements (for example, measuring point specification data). The aims of this standard are: - to define a common language for customers and suppliers through the publication of Lists of Properties (LOPs), - to optimize workflows between customers and suppliers as well as in processes such as engineering, development and purchasing within their own organizations, to reduce transaction costs. This publication is to be read in conjunction with IEC 61987-1:2006.