IEC 61563 pdf download
IEC 61563 pdf download Radiation protection instrumentation – Equipment for measuring specific activity of gamma-emitting radionuclides in foodstuffs 1.1Scope This International Standard applies to portable instruments used for measuring the specific orvolumic activity of gamma-emitting radionuclides in food/foodstuffs intended for operationunder field conditions，particularly in case of a post-accidental situation. It does not apply tolow background laboratory instrumentation requiring highly skilled...
IEC 61584 pdf download
IEC 61584 pdf download Radiation protection instrumentation – Installed, portable or transportable assemblies – Measurement of air kerma direction and air kerma rate 1 General 1.1 Scope and object 1.1.1 This International Standard is applicable to installed，portable or transportableassemblies intended to measure – the direction of an x or gamma radiation source in terms of azimuth and elevation angles, as...
IEC 61631 pdf download
IEC 61631 pdf download Test method for the mechanical strength of cores made of magnetic oxides This International Standard specifies a test method for the mechanical strength of cores madeof magnetic oxides.This test method is suitable for most of the E-cores,ETD-cores andl-cores but other core types such as U-cores could be tested according to a derived methodagreed by the parties...
IEC 61643-331 pdf download
IEC 61643-331 pdf download Components for low-voltage surge protective devices – Part 331: Specification for metal oxide varistors (MOV) 1scope This part of lEC 61643 is a test specification for metal oxide varistors (MOV), which are usedfor applications up to 1 000 v a.c. or 1 500 V d.c. in power line,or ‘telecommunication，orsignalling circuits. They are designed to protect apparatus...
IEC 61669 pdf download
IEC 61669 pdf download Electroacoustics — Equipment for the measurement of real-ear acoustical characteristics of hearing aids Scope This International Standard specifies the general requirements for test equipment designedfor use in measuring the real-ear acoustical characteristics of hearing aids and describes theterminology used. The purpose of this International Standard is to ensure that measurements of real-earacoustical characteristics of a hearing...
IEC 61685 pdf download
IEC 61685 pdf download Ultrasonics – Flow measurement systems – Flow test object 1 scope This International Standard specifies parameters for a flow Doppler test object representinga blood vessel of known diameter at a certain depth in human tissue, carrying a steady flow. This International Standard establishes a flow Doppler test object which can be used toassess various aspects of...
IEC 61754-18 pdf download
IEC 61754-18 pdf download Fibre optic connector interfaces – Part 18: Type MT-RJ connector family 1 Scope This part of IEC 61 754 defines the standard interface dimensions for the type MT-RJ family of connectors. 2 Description The parent connector for the type MT-RJ connector family is a plug connector having single or multiple fibres in a rectangular ferrule nominally...
IEC 61754-19 pdf download
IEC 61754-19 pdf download Fibre optic connector interfaces – Part 19: Type SG connector family 1 Scope This part of IEC 61 754 defines the standard interface dimensions for the type SG family of connectors. 2 Description The parent connector for the type SG connector family is a single position plug of plug/socket connector set configuration. The plug is characterized...
IEC 61834-8 pdf download
IEC 61834-8 pdf download Recording – Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 8: PALplus format for the 625-50 system 1 General 1.1scope This part of lEC 61834 is an extension of the SD specification (SD mode) and covers thefeatures necessary to enable a DVCR to...
BS IEC 61468 pdf download
BS IEC 61468 pdf download Nuclear power plants — In-core instrumentation — Characteristics and test methods of self-powered neutron detectors 1 Scope and object This International Standard applies to in-core neutron detectors and instrumentation whichare designed for purposes important to safety: protection，control and information. lt isrestricted to characteristics and test methods for self-powered neutron detectors(SPNDs).Self-powered neutron detectors can be used...