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Overview EN ISO 21987:2017 - Ophthalmic optics: Mounted spectacle lenses specifies requirements and test methods for mounted spectacle lenses in relation to the prescription order. Published by CEN a…
Overview ISO 21982:2020 specifies technical requirements and dimensions for ratcheting wrenches used to assemble or disassemble hexagonal and double-hexagonal fasteners. It covers both combination ra…
Overview ISO 21980:2020 - "Space systems - Evaluation of radiation effects on Commercial‑Off‑The‑Shelf (COTS) parts for use on low‑orbit satellite" provides guidance for evaluating radiation effects…
Overview ISO 21987:2017 - Ophthalmic optics - Mounted spectacle lenses specifies the requirements and test methods for spectacle lenses after they have been mounted in frames, relative to the prescri…
Overview - ISO 21984:2018 (Ships and marine technology - Vibration guidelines) ISO 21984:2018 provides guidance for the measurement, evaluation and reporting of shipboard vibration with regard to hab…
Overview ISO 21988:2006 - Abrasion-resistant cast irons - Classification defines grades of abrasion-resistant white cast irons by chemical composition and Brinell hardness. The standard covers three…
Overview ISO 21983:2019 provides comprehensive guidelines for the harvesting, transportation, separation of stigma, drying, and storage of saffron before packing. This international standard ensures…