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This document specifies requirements for reference lenses for the calibration and verification of focimeters that are used for the measurement of spectacle form lenses, e.g. those complying with ISO 8598-1. It also gives a method for the determination of the back vertex power of the reference lenses. NOTE            It is accepted that other reference lenses can also be used with powers within…

Le présent document spécifie les méthodes d’essai pour l'évaluation des matériaux de restauration dentaire, matériaux de scellement, produits de comblement des fissures et matériaux de collage ou de scellement orthodontiques qui sont revendiqués par leurs fabricants respectifs pour exercer des effets «antibactériens». NOTE       Les matériaux de coiffage pulpaire (par exemple, formulations à…

This document specifies test methods for the evaluation of dental restorative materials, luting materials, fissure sealants and orthodontic bonding or luting materials that are claimed by their respective manufacturers to exert “antibacterial” effects. NOTE       Materials for pulp capping (e.g. calcium hydroxide formulations), endodontic filling materials, dental implants or implant systems,…

This document specifies requirements and recommendations for the design and execution of an interlaboratory comparison for validation of new standardized analytical methods in the field of water analysis, e.g. the number of participating laboratories and time schedules. This document is based on ISO 5725-1 and ISO 5725-2. NOTE            The scope of other standards in the field of…

This document addresses a blockchain-based traceability platform for cold chain food which realizes continuous and effective tracking of the cold chain food. The following aspects are included: —    it explores issues and considerations for cold chain food traceability, especially during the epidemic outbreak; —    it describes scenarios and stakeholders for effective tracking of the cold chain…

These international guidelines are based on the assumption that monitoring of environmental components (atmosphere, water, soil and biota) as well as food quality is performed to ensure the protection of human health[5][7][8][9][10][11][12]. The guidelines constitute a basis for the setting of national regulations, standards, and inter alia, for monitoring air, water and food in support of public…

IEC 62044-3:2023 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 62044-3:2023 specifies measuring methods for power loss and amplitude permeability of magnetic cores forming the…

IEC 60383-1:2023 applies to insulators of ceramic material or glass for use on AC overhead power lines and overhead traction lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. It also applies to insulators for use on DC overhead electric traction lines. This document applies to string insulator units, rigid overhead line insulators and to insulators of…

L'IEC 60383-1:2023 s’applique aux isolateurs en céramique ou en verre destinés aux lignes aériennes de transport d’énergie et de traction électrique fonctionnant en courant alternatif à une tension nominale supérieure à 1 000 V et à une fréquence maximale de 100 Hz. Elle s’applique également aux isolateurs utilisés sur des lignes aériennes de traction électrique fonctionnant en courant…

IEC 62044-3:2023 specifies measuring methods for power loss and amplitude permeability of magnetic cores forming the closed magnetic circuits intended for use at high excitation levels in inductors, chokes, transformers and similar devices for power electronics applications. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision…