How to decode the string of letters and numbers on an Ex-certified product. Walks through the full marking structure: the Ex symbol, protection method codes (d, e, i, p, etc.), gas group (IIA/IIB/IIC),temperature class (T1-T6), and equipment protection level (Ga/Gb/Gc).Includes real-world marking examples, combined protection methods, dust markings, and the differences between ATEX and IECEx marking formats. After this episode, you can read any Ex nameplate. More info: https://exknowledge.com