Practical Limits of Liquid Penetrant Examination for Food Plant Process Lines
https://ultrasonic-immersion-digest.clearminster.com/posts/c-scan-mapping-for-bonded-sheets-steps-for-a-sound-scan
Practical Limits of Liquid Penetrant Examination for Food Plant Process Lines Process lines often use stainless pipe and smooth internal surfaces. Penetrant testing can reveal open-to-surface flaws in suitable nonporous materials