特别涉及测量:中子注量率（通量）；剩余活性的测定；钠（或其他液态金属）的温度、流速、活性和纯度。还涉及保护和控制系统。 IEC 60231系列标准不再是最新的，IEC不会对其进行修订。目前保留这些标准是为了参考书目，因为它们过去曾用于仍在运行的核电厂的设计。

Deals in particular with measurements: of neutron fluence rate (flux); of residual activity; of the temperature, flow rate, activity and purity of the sodium (or other liquid metal). Deals also with the protection and control systems. The IEC 60231 series of standards is no longer up-to-date and will not be revised by IEC. The standards are maintained for the time being for bibliographical purposes and because they were used in the past for the design of nuclear power plants which are still in operation.