Sound system equipment - Part 7: Headphones and earphones
IEC 60268-7:2025 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60268-7:2025 edition 4.0 and the previous IEC 60268-7:2010+AMD1:2020 CSV edition 3.1. Furthermore, comments from IEC TC 100 experts are provided to explain the reasons of the most relevant changes, or to clarify any…
Coaxial communication cables - Part 1-102: Electrical test methods - Test for insulation resistance ...
IEC 61196-1-102:2025 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 61196-1-102:2025 applies to coaxial communication cables. It specifies test methods for determining the…
Quartz crystal units of assessed quality - Part 2: Guidelines for the use
IEC 60122-2:2025 has been compiled in response to a generally expressed desire on the part of both users and manufacturers for guidelines to the use of quartz crystal units for filters and oscillators so that the crystal units may be used to their best advantage.
It draws attention to some of the more fundamental questions which will be considered by the user before it places its order for a…
Standard for Shop Fabricated Steel Aboveground Tanks for Flammable and Combustible Liquids
Scope
1.1 This Standard sets forth minimum requirements for steel, non-pressure tanks that are used for the
aboveground storage of flammable and combustible liquids compatible with the material of construction
and with a specific gravity not greater than 1.0. Tanks storing liquids with a specific gravity greater than 1.0
are covered in 8.7. Tanks designed for higher static pressures are…
Norme sur les réservoirs hors sol en acier fabriqués en usine pour liquides inflammables et combusti...
Domaine d’application
1.1 La présente norme établit les exigences minimales applicables aux réservoirs en acier non
pressurisés utilisés pour le stockage hors sol de liquides inflammables et combustibles compatibles avec
le matériau de construction et dont la densité ne dépasse pas 1,0. Les réservoirs stockant des liquides
dont la densité est supérieure à 1,0 sont abordés à la sous-section 8.…
Sound system equipment - Part 7: Headphones and earphones
IEC 60268-7:2025 is applicable to headphones, earphones, headsets and earsets, intended to be used on, or in, the human ear. It also applies to equipment, such as pre-amplifiers, passive networks and power supplies which form an integral part of the headphone system.
This document does not deal with:
- safety, for which reference is made to IEC 62368-1 or another appropriate standard;
- the…
Electronic displays for special applications - Part 2: Elevator and escalator
IEC TR 63340-2:2025 provides general information for the standardization of elevator and escalator displays as the introduction of this standard series. This document includes an overview of the technology, all aspects of possible standardizations of the electronic display applications in elevator and escalator, and how to proceed each item.
Fibre optic interconnecting devices and passive components - Fibre optic WDM devices - Part 1: Gener...
IEC 62074-1: 2025 applies to fibre optic wavelength division multiplexing (WDM) devices. These have all of the following general features:
- they are passive, in that they contain no optoelectronic or other transducing elements; however they can use temperature control only to stabilize the device characteristics; they exclude any optical switching functions;
- they have three or more ports for…
Household and similar electrical appliances - Safety - Part 2-114: Particular requirements for Perso...
IEC 60335-2-114:2022+AMD1:2025 CSV deals with the electrical safety of Personal e-Transporters used in the private or public areas. The device can have one or more wheels, self-balancing provisions, provisions for the transport of cargo and can be for private, commercial, shared use or for hire.
Examples of devices that are within the scope of this standard are
– self-balancing transport…