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EVS-EN ISO 17640:2018 Keevisõmbluste mittepurustav katsetamine : ultraheliga katsetamine. Meetodid, katsetasemed ja hindamine = Non-destructive testing of welds : ultrasonic testing. Techniques, testing levels, and assessment (ISO 17640:2018)
Translator: Riho Päärsoo, Author: Eesti Standardikeskus
Acta historica Tallinnensia ; 10Eesti Teaduste Akadeemia, Tallinna Ülikool. Ajaloo Instituut, arheoloogia ja kunstiajaloo keskus Tallinna Ülikool. Ajaloo, Tartu Ülikool