Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
IEC 62236-3-2:2018 applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. IEC 62236‑3‑2 applies for the integration of apparatus on rolling stock. The objective of this document is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated…
Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalli...
IEC 62236-4:2018 specifies limits for emission and immunity and provides performance criteria for signalling and telecommunications (S&T) apparatus (including power supply systems belonging to S&T) which may interfere with other apparatus inside the railway environment, or increase the total emissions for the railway environment and so risk causing electromagnetic interference to…
Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power ...
IEC 62236-5:2018 applies to emission and immunity aspects of EMC for electrical and electronic apparatus and systems intended for use in railway fixed installations for power supply. This includes the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items such as switching stations, power autotransformers, booster transformers, substation power…
Semiconductor devices - Mechanical and climatic test methods - Part 13: Salt atmosphere
IEC 60749-13:2018 describes a salt atmosphere test that determines the resistance of semiconductor devices to corrosion. It is an accelerated test that simulates the effects of severe sea-coast atmosphere on all exposed surfaces. It is only applicable to those devices specified for a marine environment. The salt atmosphere test is considered destructive.
This edition includes the following…
Coke — Determination of coke reactivity index (CRI) and coke strength after reaction (CSR)
ISO 18894:2018 specifies the equipment and techniques used for determining lump-coke (nominal top size >20 mm) reactivity in carbon dioxide gas at elevated temperatures and its strength after reaction in carbon dioxide gas by tumbling in a cylindrical chamber.
Main application is the testing of coke to be used in iron making blast furnaces (CRI~ < 33, CSR~ > 55). This standard can also…