1. BS IEC 61275:2013. Radiation protection instrumentation - Measurement of discrete radionuclides in the environment - In situ photon spectrometry system using a germanium detector

2. BS IEC 61336:1996. Nuclear instrumentation - Thickness measurement systems utilizing ionizing radiation - Definitions and test methods

3. BS IEC 61378-3:2015. Converter transformers - Part 3: Application guide

4. BS IEC 61428:1998. Nuclear instrumentation - Sample containers for gamma-ray spectrometry with Ge-detectors

5. BS IEC 61435:2013. Nuclear instrumentation - High-purity germanium crystals for radiation detectors - Measurement methods of basic characteristics

6. BS IEC 61501:1998. Nuclear reactor instrumentation - Wide range neutron fluence rate meter - Mean square voltage method

7. BS IEC 61511-1:2003. Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and software requirements

8. BS IEC 61511-2:2003. Functional safety - Safety instrumented systems for the process industry sector - Part 2: Guidelines for the application of IEC 61511-1

9. BS IEC 61511-3:2003. Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels

10. BS IEC 61520:2000. Metal thermowells for thermometer sensors - functional dimension