DIN EN ISO 16831 E:2024 無損檢測 超聲波檢測 厚度測定用超聲波設備的特性和驗證 (ISO/DIS 16831:2024) 草案
Draft Document - Non-destructive testing - Ultrasonic testing - Characterization and verification of ultrasonic equipment for the determination of thickness (ISO/DIS 16831:2024); German and English version prEN ISO 16831:2024