British Standards Institution

Source:: IEC
Committee:: NCE/8 - Instrumentation, Control & Electrical Systems of Nuclear Facilities
Categories:: Radiation protection | Measurement. Radiation | Nuclear power plants. Safety
Number of comments:: 0

Scope

This part of IEC 60951 provides general guidance on the design principles and performance criteria for equipment for continuous in-line or on-line monitoring of radioactivity in process stream in nuclear facilities for accident and post-accident conditions.

General requirements for technical characteristics, test procedures, radiation characteristics, electrical, mechanical, and environmental characteristics are given in IEC 60951-1. These requirements are applicable in this document unless otherwise stated.

IEC 60951-4 is only applicable to continuous in-line or on-line measurement, i.e. monitors for which the detector measures radioactivity by being positioned in the process stream (i.e. immerged in) or adjacent to the process stream (i.e. viewing straight through a pipe or tank). It does not apply to monitors for which the detector measures a representative proportion of the stream at some remote location (sampling assembly), which are within the scope of IEC 60951-2.

IEC 60951-4 is only applicable to monitors for accident and post-accident conditions. Process stream radiation monitoring equipment for normal and incident conditions are within the scope of IEC 60768.

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Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

28/01/2025

3. Public Comments

Public Comments start date:

31/10/2024

Public Comments end date:

18/12/2024

Learn more about the standards development process

Standards Development

BS IEC 60951-4 ED3 BS EN 60951-4 ED3 Nuclear power plants - Instrumentation important to safety - Radiation monitoring for accident and post-accident conditions. Part 4: Equipment for continuous in-line or on-line monitoring of radioactivity in process streams

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