Dear Customers,
We will be on our Christmas break from 23 December 2025 at 1:00 p.m. and will be available again from 5 January 2026.
Please note that new registrations and requests requiring manual processing will only be handled from this date onwards.
You may, of course, place orders and access downloads online at any time.
We wish you happy holidays, a restful break, and a healthy start to the New Year!
Your DIN Media
Standard [WITHDRAWN]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This document (EN ISO 16946:2017) has been prepared by Technical Committee CEN/TC 138 "Non-destructive testing", the secretariat of which is held by AFNOR (France), in collaboration with Technical Committee ISO/TC 135 "Non-destructive testing". The responsible German committee is Working Committee NA 062-08-23 AA "Ultraschallprüfung" ("Ultrasonic testing") at DIN Standards Committee Materials Testing (NMP). This document specifies the requirements (dimensions, material, and manufacture) of a step wedge steel block for the calibration of ultrasonic instruments.
This document replaces DIN EN ISO 16946:2015-07 .
This document has been replaced by: DIN EN ISO 16946:2024-09 .