§ Standards
Status
CURRENT
Last verified
2026-09-06
BSI · STANDARD
BS EN
ISO 3834-2
Quality requirements for fusion welding — Comprehensive quality requirements
Overview
What this standard covers
The comprehensive tier of welding quality requirements, normally required for EXC3 and EXC4 work, covering welding coordination, records and control of consumables.
The comprehensive tier of welding quality requirements, normally required for EXC3 and EXC4 work, covering welding coordination, records and control of consumables.
Who uses it
Fabricators, clients and certification bodies agreeing the level of assurance required.
Details
Reference data
- Standard number
- BS EN ISO 3834-2
- Title
- Quality requirements for fusion welding — Comprehensive quality requirements
- Organisation
- BSI
- Country
- United Kingdom
- Region
- United Kingdom
- Subject
- Quality & certification
- Subcategory
- Welding quality
- Type
- STANDARD
- Application
- Contractual
- Availability
- Paid
- Status
- CURRENT
- Roles
- certification standard
- Last verified
- 2026-09-06
Official source: knowledge.bsigroup.com
Related
Standards used alongside this one
- BS EN 1090-2
Execution of steel structures — Technical requirements for steel structures
The central execution standard for UK and European steelwork: execution classes EXC1 to EXC4, constituent products, cutting and holing, welding, bolting, erection and geometrical tolerances.
United KingdomFabricationCURRENTPaid
- BS EN ISO 14731
Welding coordination — Tasks and responsibilities
Defines the technical knowledge and responsibilities of the responsible welding coordinator required under EN 1090-2 and ISO 3834.
United KingdomWeldingCURRENTPaid
- ISO 9001
Quality management systems — Requirements
The general quality management system standard almost always required of structural steel fabricators alongside welding specific certification.
InternationalQuality & certificationCURRENTPaid
- AISC Certification
AISC Certification Programs for Fabricators and Erectors
Audited certification of building, bridge and component fabricators and of steel erectors, frequently mandated in US project specifications.
United StatesQuality & certificationCURRENTFree
- BCA requirements
Building and Construction Authority structural steel requirements
Singapore's plan approval, accredited fabricator and independent checking requirements for structural steelwork.
SingaporeQuality & certificationCURRENTFree
- BIS Certification
BIS Standard Mark (ISI) product certification
Product certification marking conformity to the relevant Indian Standard, applied to structural steel under quality control orders.
IndiaQuality & certificationCURRENTFree
Sourcing, review and use
Status
Editorial reference information compiled and maintained by the StructuralSteel.ai team. It is not a design certificate and is not issued under an engineer's seal.
Last reviewed
Calculations
Any figures produced on this page are indicative estimates for early sizing and comparison only — they are not engineered design outputs.
References
Final member selection, loading, connection design, fire design, fabrication and compliance must be verified for your specific project by a suitably qualified structural engineer. Standards are revised; check the edition in force where the work is built.
Verification
StructuralSteel.ai provides technical reference information and links to authoritative sources. Project specifications, applicable legislation, current standards editions and requirements of the responsible engineer or authority should always be verified before fabrication or supply.