Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of ca...
IEC 61788-23:2024 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 61788-23:2024 addresses a test method for the determination of the residual resistance ratio (RRR), rRRR, of…
Thermoplastics piping systems for non-pressure underground drainage and sewerage — Joints for buried...
This document specifies a method for determining the long-term sealing pressure of elastomeric seals in assembled joints for buried non-pressure sewerage plastics piping and ducting systems.
Traditional Chinese medicine — Gardenia jasminoides fruit
This document specifies the quality and safety requirements and test methods of Gardenia jasminoides fruit, which is derived from the dried fruit of Gardenia jasminoides Ellis (Fam. Rubiaceae).
This document is applicable to Gardenia jasminoides fruit that are sold and used as natural medicines in international trade, including Chinese materia medica (whole medicinal material) and decoction…
Circular economy — Guidance on the transition of business models and value networks
This document gives guidance for an organization seeking to transition its value creation models and value networks from linear to circular.
This document is applicable to any organization regardless of size, sector or region.
Fine bubble technology — Domestic applications — Part 1: Assessment of showerhead devices by evaluat...
This document specifies the evaluation method for size and concentration indices of fine bubbles generated from the fine bubble showerhead device. It is only applicable to fine bubble dispersion in water generated from fine bubble showerhead devices using air. It describes the sampling method for fine bubble dispersion in water from the fine bubble showerhead devices into the retention container…
Composites and reinforcements fibres — Mechanoluminescent visualization method of crack propagation ...
This document applies to the measurement of crack tip position and crack propagation on the bonding surface of carbon fibre reinforced plastic (CFRPs) and metal assemblies bonded panels.
This document does not apply to the visualization measurement of strain distribution or defects during load application to specimens.
This document does not intend to:
a) omit relevant field tests for CFRP…
Fans — Efficiency classification for fans — Part 6: Calculation of the fan energy index
This document defines the calculation method for determining the fan energy index (FEI), which is an energy efficiency metric for fan duty points. This metric provides a standardized and consistent basis to compare fan energy performance across fan types and sizes at a given fan duty point.
This document is applicable to fans driven by electric motors and fans without drives. It is not applicable…
Circular economy — Measuring and assessing circularity performance
This document specifies requirements and gives guidance to organizations for measuring and assessing a defined economic system to determine their circularity performance at a specific time. Measurement and assessment are performed by the collection and calculation of data with the help of mandatory and optional circularity indicators.
This document provides a framework to guide users within…
