Jewellery. Ring-sizes. Definition, measurement and designation Ingestion-build-260237 BS EN 50549-2 also gives

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• Durability test on bed base5

Jewellery. Ring-sizes. Definition, measurement and designation Ingestion-build-260237 BS EN 50549-2 also gives1 Scope and field of application This International Standard specifies the method for measuring the size of rings for the purposes of designating ring sizes to be used in jewellery.