Environmental testing - Part 3-3: Supporting documentation and guidance - Seismic test methods for e...
IEC 60068-3-3:2019 applies primarily to electro-technical equipment but its application can be extended to other equipment and to components. In addition, if some type of analysis is always performed when making a seismic qualification, for example for the choice of the representative sample to be tested or for the extension of the seismic qualification from the tested specimen to similar…
Winding wires - Test methods - Part 3: Mechanical properties
IEC 60851-3:2009+A1:2013+A2:2019 specifies the following methods of test for winding wires:
- Test 6: Elongation;
- Test 7: Springiness;
- Test 8: Flexibility and adherence;
- Test 11: Resistance to abrasion;
- Test 18: Heat bonding.
With respect to the previous edition, significant technical changes appear in Subclause 5.3, Jerk test. This consolidated version consists of the third edition…
Railway applications - Fixed installations - Electronic power converters for substations
IEC 62590:2019 specifies the requirements for the performance of all fixed installations electronic power converters, using controllable and/or non-controllable electronic valves, intended for traction power supply. The devices can be controlled by means of current, voltage or light. Non-bistable devices are assumed to be operated in the switched mode.
This document applies to fixed…
Stationary source emissions— Determination of the mass concentration of ammonia — Manual method
This document specifies a manual method of measurement including sampling and different analytical methods for the determination of the mass concentration of ammonia (NH3) in the waste gas of industrial plants, for example combustion plants or agricultural plants. All compounds which are volatile at the sampling temperature and produce ammonium ions upon dissociation during sampling in the…
Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custod...
This document specifies requirements and recommendations for ultrasonic gas flowmeters (USMs), which utilize the transit time of acoustic signals to measure the flow of single phase homogenous gases in closed conduits.
This document applies to transit time ultrasonic gas flowmeters used for custody transfer and allocation metering, such as full-bore, reduced-area, high-pressure, and low-pressure…