UNI EN 1591-4 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Qualification of trainer
5 Qualification of assessor
6 Personnel with work-based learning
7 Training location
8 Training syllabi
9 Effectiveness of training
10 Competence assessment
11 Competence management
12 Period of validity of certification
Bibliography

Pertains to the bolting technicians, and their supervisors, the responsible engineers, who disassemble, assemble and tighten the bolted connections of whatever shape of critical service pressurised systems where the failure of a connection would endanger personnel, plant or the environment.