ISO 9902-4:2001

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ISO 9902-4:2001 is an International Standard published by the International Organization for Standardization (ISO) that specifies the procedure for measuring noise levels emitted by yarn processing, cordage and rope manufacturing machinery. This standard, part of the broader ISO 9902 series on textile machinery noise testing, provides the conditions and procedures for measuring, declaring, and verifying noise levels to ensure compliance with safety regulations.