QUALITY AND CERTIFICATIONS
Our commitment to quality is documented at every stage of production. OKTO SA operates certified management systems and produces structural components bearing the CE marking to EN 1090 — covering structures up to Execution Class EXC3 — accompanied by a Declaration of Performance (DoP). Factory Production Control and full material traceability ensure that every structure meets the requirements of the specific project, from design to installation
CERTIFIED BY THE ACCREDITED BODIES
EUROCERT & TÜV AUSTRIA HELLAS
QUALITY ASSURANCE IN PRACTICE
- Raw-material inspection with certificates and heat-number matching to each component
- Approved welding procedures (WPS/WPQR) & qualified welders, under a welding coordinator
- Full-spectrum non-destructive testing (NDT): visual testing (VT) on all welds and, depending on the execution class and weld type, magnetic particle (MT), penetrant (PT), ultrasonic (UT) and radiographic (RT) testing
- Inspection of essential & functional tolerances to EN 1090, before and after erection
- Corrosion protection according to the corrosivity category
- Passive fire protection (PFP): application of intumescent (fire-resistant) coatings, where required by the project's fire-safety study, in strict compliance with the specifications of the supplier's certified system
- Hot-dip galvanizing to EN ISO 1461, where required, at certified partner galvanizing plants
- Complete quality dossier per project (DoP, material certificates, inspection reports)
STANDARDS WE COMPLY WITH
Our fabrication is governed by a comprehensive framework of European standards:
- EN 1090-1: CE marking of structural components & Declaration of Performance (DoP)
- EN 1090-2: Technical requirements for the execution of steel structures
- EN ISO 3834-2: Comprehensive quality requirements for fusion welding
- EN ISO 9606-1: Qualification of welders
- EN ISO 15614-1 / 15609-1: Welding procedure qualification (WPQR) & specifications (WPS)
- EN ISO 14731: Welding coordination & supervision
- EN 10204 (type 3.1): Raw-material inspection certificates with traceability
- EN ISO 12944: Corrosion protection by paint systems
- EN 14399 / EN 15048: Preloaded & non-preloaded bolted connections
- Eurocodes 1 & 3 (EN 1991 / EN 1993) & EAK — Design: actions, steel, seismic