ISO 7500-1 Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Calibration and verification of the force-measuring system*, 2018-02-01 Update
ISO 8539:2009 history
2009ISO 8539:2009 Forged steel lifting components for use with Grade 8 chain
1986ISO 8539:1986 Forged steel lifting components for use with grade T(8) chain