Tag
#certification
2 topics across all disciplines.
Inspector competence and certification — who may interpret, and who only operates
SNT-TC-1A as an employer's written practice rather than a certificate, ISO 9712 as the independent route, what Levels I, II and III may each do, and why the inspector's own qualification is the first thing a client audits.
Hazardous areas — zones, gas groups and Ex protection explained
Why a light fitting in a refinery costs ten times a normal one. Zones and divisions, gas groups, temperature classes, IP ratings, and how to read an Ex certification label.