How Ex equipment goes from prototype to certified product. Covers thefull certification journey: preparing technical documentation, selecting a notified body or ExCB, type examination and testing, theQAN (Quality Assurance Notification) for ongoing manufacturing, factory audits, and the differences between ATEX and IECEx certification paths. Explains what happens when designs change, certificates expire, and how manufacturers maintain compliance over a product's lifetime. More info: https://exknowledge.com