Ships and marine technology — Drain facilities from oil and water tanks
This document specifies the dimensions and materials for welding rings and drain screws of drain facilities situated at the bottom of oil and water tanks.
Oil and water tanks occur as:
—    built-in tanks, as an integrated part of the hull structure; and
—    detachable tanks, located in appropriate rooms and compartments.
This document covers facilities for both instances.
Rolling bearings — Radial bearings — Geometrical product specifications (GPS) and tolerance values
This document specifies dimensional and geometrical characteristics, deviation limits from nominal sizes, and tolerance values to define the interface (except chamfers) of radial rolling bearings. Nominal boundary dimensions are defined in ISO 15, ISO 355[2] and ISO 8443[4].
This document does not apply to certain radial bearings of particular types (e.g. needle roller bearings) or for particular…
Rolling bearings — Thrust bearings — Geometrical product specifications (GPS) and tolerance values
This document specifies dimensional characteristics, deviation limits from nominal values, and tolerance values to define the interface (except chamfers) of thrust rolling bearings. Nominal boundary dimensions are defined in ISOÂ 104[1].
This document is not applicable to certain thrust bearings (e.g. thrust needle roller bearings) or for particular fields of application (e.g. special thrust…
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for optical properties ...
This document specifies a substitution measurement method to measure internal quantum efficiency, external quantum efficiency and absorptance of ceramic phosphor powders, which are used in white light-emitting diodes (LEDs) and emit visible light when excited by UV or blue light. In this method, commercially available measurement equipment, such as a fluorescence spectrophotometer or a…
Combined flexible materials for electrical insulation - Part 1: Definitions and general requirements
IEC 60626-1:2023 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 60626-1:2023 contains the definitions related to and the general requirements to be fulfilled by combined…
This standard applies to precast reinforced concrete sewer maintenance holes, catch basins, valve chambers and pumping stations intended for use to a maximum depth of 7 m in sanitary sewer systems, combined sewer systems, storm sewer and drinking water systems.
NOTE — Even if they are not mentioned in the scope of this standard, certain elements described in this standard may be used in water…
Low-voltage electrical installations - Part 7-716: Requirements for special installations or locatio...
IEC 60364-7-716:2023 specifies requirements in electrical installations for the distribution of ELV DC power using balanced, information technology cables and accessories primarily designed for data transmission, as specified in terms of a category within the channels of ISO/IEC 11801-1 using power sourcing equipment in accordance with IEC 62368-3.
Requirements are included for the design,…