IEC 61562 pdf download Radiation protection instrumentation – Portable equipment for measuring specific activity of beta-emitting radionuclides in foodstuffs This International Standard applies to portable instruments used for measuring the specificactivity of beta-emitting radionuclides in food/foodstuffs and intended for operation under fieldconditions. This does not apply to low background laboratory instrumentation requiring highlyskilled personnel. The instruments designed for measurement of...