Rechercher

Specifies mechanical dimensions and certain electroacoustic characteristics for condenser microphones used as laboratory standards for the realization of the unit of sound pressure. The specifications are intended to ensure that primary calibration by the reciprocity method can be readily carried out. Establishes a system for classifying laboratory standard condenser mocrophones.

Applies to electroheating installations comprising industrial coreless (crucible) induction furnaces for melting and for holding at temperature a molten charge. Standardizes test methods to determine the essential parameters and technical characteristics of electroheating installations comprising the furnaces indicated above.

It has the status of a horizontal standard in accordance with IEC Guide 108.

It has the status of a horizontal standard in accordance with IEC Guide 108.

Specifies system parameters and applies to the pre-recorded optical reflective disc system called 'compact disc video (CD video)' containing digital audio and 'Laser Vision' video information. In the case of CD video, this standard modifies the relevant text in IEC 60908.

Gives general information and methods of test common to all types of piezoelectric filters.

This standard is the first of a new series of collateral standards that specify general requirements for safety applicable to a group of electromedical equipment not fully addressed in the General Standard. This publication deals with safety requirements for medical electrical systems.

In defining area measurement, uses the intra-muros and extra-muros concept. The indicators defined are intended for practical use, as a basis for measuring various aspects of the performance of buildings or as a planning aid. Intended to be used when establishing 1) specifications for the geometric performance of a building and its spaces, 2) technical documentation relating to the performance of…

Specifies a method to determine the location of the centre of gravity. Other procedures may exist and be used, employing more elaborate and sophisticated methods and equipment, such as tilt-tables and cradles. Annex A gives a method of determining static loaded radius, Annex B includes a standard of test report.

Applies to newly manufactured static watt-hour meters of accuracy classes 0,2 S and 0,5 S, for the measurement of alternating-current electrical active energy of a frequency in the range 45 Hz to 65 Hz and to their type tests only. This standard applies only to transformer-operated meters for indoor application consisting of a measuring element and register(s) enclosed together in a meter case.…