Luminaires - Part 1: General requirements and tests
IEC 60598-1:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60598-1:2020 specifies general requirements for luminaires, incorporating electric light sources for operation from…
Semiconductor devices - Mechanical and climatic test methods - Part 30: Preconditioning of non-herme...
IEC 60749-30:2020 establishes a standard procedure for determining the preconditioning of non-hermetic surface mount devices (SMDs) prior to reliability testing.
The test method defines the preconditioning flow for non-hermetic solid-state SMDs representative of a typical industry multiple solder reflow operation.
These SMDs are subjected to the appropriate preconditioning sequence described in…
Analytical colorimetry — Part 4: Metamerism index for pairs of samples for change of illuminant
This document specifies a formalism for the calculation of the illuminant metamerism of solid surface colours. It cannot be applied to colours of effect coatings without metrical adaptation.
This document only covers the phenomenon of metamerism for change of illuminant, which has the greatest meaning in practical application. In the case of chromaticity coordinates of a pair of samples under…
Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - ...
IEC 60947-5-8:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60947-5-8:2020 specifies requirements for three-position enabling switches. These switches are used as…
This document specifies, for acrylonitrile-butadiene rubbers (NBRs):
— physical and chemical tests on raw rubbers;
— standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics.
The mixing preferred method is the single stage mixing with LIM (laboratory internal mixer).
Buildings and civil engineering works — Vocabulary — Part 1: General terms
This document contains the terms and definitions of general concepts to establish a vocabulary applicable to buildings and civil engineering works.
It comprises:
a) fundamental concepts, which can be the starting point for other, more specific, definitions;
b) more specific concepts, used in several areas of construction and frequently used in standards, regulations and contracts.
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-secti...
This document specifies the geometry and method of use (installation and operating conditions) of nozzles and Venturi nozzles when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit.
This document also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in ISO 5167‑1.
This…
Agricultural vehicles — Standardized access to repair and maintenance information (RMI) — Part 1: Us...
This document specifies the standardized access to repair and maintenance information (RMI) systems to provide repair and maintenance information for vehicles used in agriculture and forestry. It provides
— general information and basic principles,
— use case definitions (functional requirements), and
— technical requirements
as guidelines for manufacturers intending to establish such…
Plastics — Determination of apparent activation energies of property changes in standard weathering ...
This document describes a test method to determine the activation energy (Ea) of photochemical degradation reactions in accelerated weathering tests according to the Arrhenius model in the most comprehensive manner.
1.1 These requirements cover intrusion detection units for burglary protection signalling systems to be
employed in outdoor or ordinary indoor (non-hazardous) locations to automatically indicate the presence
of an intruder by actuating electrical control circuits.
1.2 An intrusion detector as covered by these requirements consists of one or more unit assemblies of
electrical components which…
