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This publication also bears the number QC 410200 which is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Prescribes standard ratings and characteristics, selects from IEC 393-1 the appropriate methods of test and gives general performance requirements for this type of potentiometer. Relates only to single-turn rotary type of power potentiometers…

Provides supplementary technical information for IEC 60411 and 60411-1 necessary for the calculation of power quantities such as power factor, displacement factor and low-order harmonics. This publication has the status of a report.

This publication also bears a QC number. This number, QC 400200, is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Relates to fixed resistors with rated dissipations greater than 1 W up to 1 000 W which are provided with a cover or coating for environmental protection. Prescribes preferred ratings and characteristics and selects from IEC 115-1…

This publication also bears a QC number. This number, QC 400300, is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Applies to fixed precision resistors for use in electronic equipment. Prescribes preferred ratings and characteristics. Selects from IEC 115-1 appropriate Quality Assessment procedures, tests and measuring methods. Gives general…

Gives guidance on the selection of the appropriate group or sub-group of electrical apparatus, protected by flameproof enclosure or designed to be intrinsically safe, according to the gas or vapour in which it is intended to be used. Provides a classification of most used gases and vapours and gives guidance on tests to classify additional gases or vapours not listed in this publication. This…

Donne des directives pour le choix du groupe ou sous-groupe approprié de matériels électriques protégés par une enveloppe antidéflagrante ou conçus de façon à être à sécurité intrinsèque, d'après le gaz ou la vapeur dans lesquels les matériels sont destinés à être utilisés. Indique les critères de classement des gaz et des vapeurs les plus courants. Des conseils sont donnés au sujet des…

Establishes the basic principles that should be adopted when setting up national standards, regulations and recommendations for the deformation of buildings at the limit states of serviceability. Refers to the deformations at the serviceability limit states of buildings such as dwellings, offices, public buildings, and factories. Does not refer to the deformations of bridges, roads, masts,…

Defines the principal terms used. These terms and their definitions conform to ISO 31/VI and CIE Publication 17. It states in the annex the spectral distribution of solar radiation energy (in the infra-red spectrum). This annex is not an integral part of the standard.

Gives general principles for coordinating dimensions of stairs and stair openings in building construction. Applies to buildings of all types. Belongs to a series of ISO publications concerning modular co-ordination in building construction.

Provides guidance in the selection of preferred numbers for use in standardization, rationalization, and size selection, leading to a degree of variety control that would otherwise be difficult or impossible. Preferred numbers are independent of any measurement system and can, therefore, be used with metric or yard/pound units, with currencies, with dimensionless numbers, etc. This…