ISO standards download ISO 4992-1:2020 pdf download – Steel castings — Ultrasonic testing — Part 1: Steel castings for general purposes ISO 4992-1:2020 pdf download - Steel castings — Ultrasonic testing — Part 1: Steel castings for general purposes. 3? Terms? and? definitions For the purposes of this document, the terms and definitions given in ISO 5577, ISO... 02-19 Download Now