Normy GB - Čínské národní normy - strana 1410

Guidelines for the statistical analysis of ageing test data—Part 3: Minimum specimen numbers at different test conditions with given experimental data

Norma vydaná dňa 7.9.2023

Methods of test for the evaluation of water treeing in insulating materials

Norma vydaná dňa 3.12.2007

Emergency power supply with inverter

Norma vydaná dňa 3.12.2007

Semiconductor convertors - Identification code for convertor connections

Norma vydaná dňa 3.12.2007

AC loss measurements—Magnetometer methods for hysteresis loss in superconducting multifilamentary composites

Norma vydaná dňa 21.5.2021

Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room

Norma vydaná dňa 14.11.2007

Acoustics—Sound-scattering properties of surfaces—Part 2Measurement of the directional diffusion coefficient in a free field

Norma vydaná dňa 23.5.2023

Acoustics - Determination of sound power levels of noise from air-terminal devices,air-terminal units,dampers and valves by measurement in a reverberation room

Norma vydaná dňa 14.11.2007

AcousticsDetermination of occupational noise exposureEngineering method

Norma vydaná dňa 3.9.2014

Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Part 1: Airborne noise measurement

Norma vydaná dňa 15.3.2018