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E DIN IEC 60951-4 VDE 0491-14-4:2026-03

Nuclear facilities – Instrumentation systems 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

(IEC 45A/1628/CDV:2025); Text in German and English
Class/Status: Draft, valid
Released: 2026 -03   Published: 2026-02 -27
VDE Art. No.: 1400648
End of objection deadline: 2026-04-27

Note: You can pre-order this document (delivery subject to availability). Valid from 2026-03-01.

This document specifically focuses on radiation monitoring systems used for accident and post-accident operations. It is intended for use by purchasers in developing specifications for their plant-specific radiation monitoring systems and by manufacturers to identify needed product characteristics when developing systems for accident monitoring conditions.

This Document is related to the following Topics (in bold):

13 ENVIRONMENT. HEALTH PROTECTION. SAFETY
13.020 Environmental protection
13.030 Wastes
13.040 Air quality
13.060 Water quality
13.080 Soil quality. Pedology
13.100 Occupational safety. Industrial hygiene
13.110 Safety of machinery
13.120 Domestic safety
13.180 Ergonomics
13.200 Accident and disaster control
13.220 Protection against fire
13.230 Explosion protection
13.260 Protection against electric shock. Live working
13.280 Radiation protection
13.300 Protection against dangerous goods
13.310 Protection against crime
13.320 Alarm and warning systems
13.340 Protective equipment
17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA
17.060 Measurement of volume, mass, density, viscosity
17.140 Acoustics and acoustic measurements
17.160 Vibrations, shock and vibration measurements
17.180 Optics and optical measurements
17.200 Thermodynamics and temperature measurements
17.220 Electricity. Magnetism. Electrical and magnetic measurements
17.240 Radiation measurements
27 ENERGY AND HEAT TRANSFER ENGINEERING
27.010 Energy and heat transfer engineering in general
27.015 Energy efficiency. Energy conservation in general
27.060 Burners. Boilers
27.070 Fuel cells
27.075 Hydrogen technologies
27.080 Heat pumps
27.100 Power stations in general
27.120 Nuclear energy engineering
27.140 Hydraulic energy engineering
27.160 Solar energy engineering
27.180 Wind turbine energy systems
27.190 Biological sources and alternative sources of energy
27.200 Refrigerating technology

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