IEC 60746-1:2003 pdf – Expression of performance of electrochemical analyzers – Part 1: General
IEC 60746-1:2003 pdf – Expression of performance of electrochemical analyzers – Part 1: General 3.8 conventional true value value approximating to the true value of a quantity such that, for the purpose for which that value is used, the difference between the two will be regarded as negligible NOTE 1 Since the “true value” cannot be known exactly, for the...
IEC 60749-17:2003 pdf – Semiconductor devices – Mechanical and climatic test methods – Part 17: Neutron irradiation
IEC 60749-17:2003 pdf – Semiconductor devices – Mechanical and climatic test methods – Part 17: Neutron irradiation. Une fois le spectre d’énergie de neutrons déterminé et la fluence monoénergétique équivalente calculée, il convient d’utiliser une feuille de contrôle appropriée ( 32 S, 54 Fe ou 58 Ni) dans les irradiations suivantes pour déterminer la fluence des neutrons. Ainsi, la fluence...
IEC 60749-25-2003 pdf – Semiconductor devices – Mechanical and climatic test methods – Part 25: Temperature cycling
IEC 60749-25-2003 pdf – Semiconductor devices – Mechanical and climatic test methods – Part 25: Temperature cycling 1 Scope This part of IEC 60749 provides a test procedure for determining the ability of semiconductor devices and components and/or board assemblies to withstand mechanical stresses induced by alternating high and low temperature extremes. Permanent changes in electrical and/or physical characteristics can...
IEC 60810-2003 pdf – Lamps for road vehicles – Performance requirements
IEC 60810-2003 pdf – Lamps for road vehicles – Performance requirements. 1 Scope This International Standard is applicable to replaceable lamps (filament lamps and discharge lamps) to be used in headlamps, fog-lamps and signalling lamps for road vehicles. It is especially applicable to those lamps which are listed in IEC 60809. However, the standard may also be used for other...
IEC 60826-2003 pdf – Design criteria of overhead transmission lines
IEC 60826-2003 pdf – Design criteria of overhead transmission lines. 1 Scope This International Standard specifies the loading and strength requirements of overhead lines derived from reliability based design principles. These requirements apply to lines 45 kV and above, but can also be applied to lines with a lower nominal voltage. This standard also provides a framework for the preparation...
IEC 60862-1-2003 pdf – Surface acoustic wave (SAW) filters of assessed quality – Part 1: Generic specification
IEC 60862-1-2003 pdf – Surface acoustic wave (SAW) filters of assessed quality – Part 1: Generic specification. 1 General 1.1 Scope This part of IEC 60862 specifies the methods of test and general requirements for SAW filters of assessed quality using either capability approval or qualification approval procedures. 1.2 Normative references The following referenced documents are indispensable for the application...
IEC 60909-3-2003 pdf – Short-circuit currents in three-phase a.c. systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short- circuit currents flowing through earth
IEC 60909-3-2003 pdf – Short-circuit currents in three-phase a.c. systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short- circuit currents flowing through earth. 1 Scope This part of IEC 60909 specifies procedures for calculation of the prospective short-circuit currents with an unbalanced short circuit in high-voltage three-phase AC systems operating at nominal frequency 50...
IEC 60942-2003 pdf – Electroacoustics – Sound calibrators
IEC 60942-2003 pdf – Electroacoustics – Sound calibrators. 1 Scope This International Standard specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS), class 1 and class 2. Tolerance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class...
IEC 60974-6-2003 pdf – Arc welding equipment – Part 6: Limited duty manual metal arc welding power sources
IEC 60974-6-2003 pdf – Arc welding equipment – Part 6: Limited duty manual metal arc welding power sources. 3 Termes et définitions Pour les besoins du présent document, les termes et définitions de la CEI 60050-151, CEI 60050-851, CEI 60204-1, CEI 60664-1 et CEI 60974-1, ainsi que les suivants s’appliquent: 3.1 soudage manuel à l’arc métallique soudage à l’arc métallique...
IEC 61005-2003 pdf – Radiation protection instrumentation – Neutron ambient dose equivalent (rate) meters
IEC 61005-2003 pdf – Radiation protection instrumentation – Neutron ambient dose equivalent (rate) meters. 1 Scope and object This International Standard is applicable to all assemblies designed to measure the ambient dose equivalent (rate) due to neutron radiation of energy up to 16 MeV, and which comprise at least: a) a detection assembly, which may, for example, consist of a...