ISO 3834 South Africa: Welding Audit Checklist, WPS, WPQR & Welder Qualification Guide
Updated: Oct 3
Quick Answer: What Does ISO 3834 Mean for a South African Fabricator?
ISO 3834 South Africa refers to applying the ISO 3834 series of quality requirements for fusion welding of metallic materials within South African fabrication and welding operations.
It is not a certificate awarded to an individual welder.
It is a framework used by manufacturers and fabricators to control welding quality across areas such as requirements review, welding procedures, personnel competence, welding coordination, materials, consumables, equipment, production, inspection, non-conformance, repair and records.
The currently published ISO 3834 framework includes ISO 3834-1:2021 for selecting the appropriate quality-requirement level, ISO 3834-2:2021 for comprehensive requirements, ISO 3834-3:2021 for standard requirements, ISO 3834-4:2021 for elementary requirements and ISO 3834-5:2021 for the documents relevant to claiming conformity. ISO confirms that the series applies both to workshop manufacturing and field installation activities. ISO
In South Africa, SAIW Certification operates an IIW-authorised Manufacturer Certification Scheme for ISO 3834 welding and fabrication companies. SAIW describes the scheme as applicable to both manufacturing workshops and construction-site activities. SAIW
ISO 3834 at a glance
Question | Practical answer |
Does ISO 3834 certify an individual welder? | No. Individual welders hold separate qualifications or performance-test records. |
Does ISO 3834 apply only inside workshops? | No. The ISO series also covers field installation activities. |
Is ISO 3834 the same as ISO 9001? | No. ISO explicitly states that ISO 3834 is not a replacement QMS standard for ISO 9001. ISO |
Who certifies companies under the IIW scheme in South Africa? | SAIW Certification operates the authorised manufacturer-certification scheme. SAIW |
What usually exposes a weak system? | Broken links between requirements, WPS, personnel, materials, production, inspection and records. |
Can training alone make a company ISO 3834-certified? | No. Training can strengthen workforce capability, but certification is a separate manufacturer-assessment process. |
ISO 3834 South Africa: What It Is — and What It Is Not
ISO 3834 exists because welding quality cannot be created simply by inspecting the finished product.
ISO's own guidance makes the point clearly: welding is a special manufacturing process, and quality needs to be built into the process rather than inspected into the product afterwards. ISO
That has enormous practical implications.
A fabricator cannot rely only on:
a final visual inspection;
an NDT report;
a skilled welder;
a WPS sitting in an office;
or an impressive quality file.
The organisation needs a controlled chain.
That chain begins before the arc is struck and continues until the product and its evidence are handed over.
ISO 3834 is not ISO 9001
ISO 3834-1:2021 explicitly says the series is not a total quality-management-system standard replacing ISO 9001, although it can complement a wider QMS. ISO
Think of it this way:
ISO 9001= broader organisational quality-management framework
ISO 3834= welding-specific quality requirements for fusion welding
A company may use both.
They do not solve exactly the same problem.
ISO 3834-2 vs ISO 3834-3 vs ISO 3834-4
The series provides three principal levels of welding-quality requirements.
ISO 3834-2: Comprehensive Quality Requirements
ISO 3834-2:2021 defines comprehensive quality requirements for fusion welding in workshops and at field installation sites. ISO
This is the most demanding of the three quality levels.
It is relevant where the fabrication risk, product requirements, contractual obligations or technical complexity justify extensive control.
ISO 3834-3: Standard Quality Requirements
ISO 3834-3:2021 defines standard quality requirements for fusion welding. ISO
It still requires structured welding control, but the level of detail differs from the comprehensive level.
ISO 3834-4: Elementary Quality Requirements
ISO 3834-4:2021 defines elementary quality requirements. ISO
This does not mean:
“minimal paperwork for companies that do not care about quality.”
It is a defined quality level selected according to the actual application and requirements.
Do not choose the level because it sounds impressive
The correct question is not:
Which ISO 3834 level makes our company look strongest?
The correct question is:
Which level is appropriate to the products, technical risk, standards, contracts and customer requirements we actually have?
ISO 3834-1 exists specifically to support that selection. ISO
What Does ISO 3834-5 Do?
ISO 3834-5:2021 identifies the standards and documents relevant when conformity is claimed to ISO 3834-2, ISO 3834-3 or ISO 3834-4. ISO
That is important because ISO 3834 does not operate in isolation.
A welding-quality system can connect to requirements around:
procedure qualification;
welder or operator qualification;
welding coordination;
inspection;
testing;
materials;
and other applicable technical standards.
The exact standards applicable to a job depend on the product, contract, process and regulatory environment.
Who Certifies ISO 3834 Companies in South Africa?
SAIW Certification operates the Welding Fabricator Certification Scheme in South Africa and states that it is authorised by the International Institute of Welding to operate the Manufacturer Certification Scheme. SAIW
SAIW also maintains a public ISO 3834 company register showing certified companies, certificate numbers, certification level and expiry dates. SAIW
That distinction is essential for Swift Skills Academy.
Swift Skills Academy can help develop workforce capability.
Swift Skills Academy does not certify manufacturers to ISO 3834.
That boundary should remain crystal clear throughout this article.
Why “ISO 3834-Certified Welder” Is the Wrong Shortcut
This phrase sounds commercially powerful.
But it collapses two different concepts.
ISO 3834 company certification
This applies to the welding manufacturer or fabricator and its quality controls.
Individual welder qualification
A welder may hold a qualification within a defined range that can depend on:
process;
material;
product type;
position;
thickness;
pipe diameter;
joint configuration;
procedure;
governing standard.
Therefore, better language includes:
qualified welders working within an ISO 3834-controlled system
or
coded welders supporting procedure-controlled fabrication
rather than implying that ISO 3834 itself is an individual welder certificate.
The older SSA article using “ISO 3834 Certified Welders” should therefore not compete with this page. It should be consolidated into this technically stronger authority asset.
The Audit Does Not Test What You Say — It Tests What You Can Prove
A welding-quality system becomes vulnerable when important controls depend on memory.
Imagine an auditor selects one finished weld.
The questions can begin immediately:
Which drawing revision applied?
Which material was used?
Which WPS governed this joint?
Who welded it?
Was that person qualified within the required range?
Which consumable was issued?
Who inspected the joint?
Which acceptance criteria were used?
Was any repair performed?
Where is the reinspection evidence?
A weak answer at one point can expose a weakness elsewhere.
That is why the evidence chain matters.
The Welding Quality Evidence Chain
The strongest way to understand ISO 3834 is as a chain:
CUSTOMER / CONTRACT REQUIREMENTS
↓
TECHNICAL REVIEW
↓
MATERIALS + JOINT REQUIREMENTS
↓
WPS / PROCEDURE CONTROL
↓
QUALIFIED PERSONNEL
↓
CONTROLLED PRODUCTION
↓
INSPECTION / TESTING
↓
NON-CONFORMANCE + REPAIR
↓
RECORDS + HANDOVER
The system is only as strong as the weak link between those stages.
Stage 1: Contract and Technical Review
Before production begins, the organisation needs to understand the actual requirements.
Questions can include:
What is being fabricated?
Which drawings apply?
Which material is specified?
Which welding process is required?
Which quality level applies?
Which acceptance criteria apply?
Which inspections or tests are required?
Which records must be supplied?
Are there special heat-treatment requirements?
Are subcontractors involved?
A workshop cannot comply with a requirement nobody identified.
Stage 2: Welding Procedure Specification — WPS
The WPS is the controlled production instruction for the weld.
Depending on the applicable procedure, it may address variables such as:
process;
joint preparation;
material;
filler;
gas;
position;
current;
voltage;
polarity;
travel;
preheat;
interpass temperature;
heat input;
post-weld requirements.
The key audit question is not:
Do you own a WPS?
It is:
Was the correct, controlled WPS available and followed for this production weld?
A beautifully formatted procedure that production never sees is not effective process control.
Stage 3: WPQR / Procedure Qualification
The WPQR or equivalent procedure-qualification evidence supports the technical basis for the procedure where qualification is required.
Do not confuse:
Control | Purpose |
WPS | Tells production how the weld is to be made |
WPQR / PQR | Records evidence supporting qualification of the welding procedure |
Welder qualification | Demonstrates an individual's performance within a defined qualification range |
One does not replace the others.
A qualified procedure does not automatically qualify the welder.
A qualified welder does not automatically create a qualified procedure.
And neither proves that the production weld actually followed the WPS.
Stage 4: Welder Qualification and Assignment
This is one of the most commercially important parts of the audit chain.
A company can have excellent welders and still have weak qualification control.
The question is not:
“Is this person a good welder?”
The question is:
Does the evidence show that this welder is qualified and authorised for this particular production requirement?
The qualification scope may involve:
welding process;
material;
position;
plate or pipe;
thickness;
diameter;
backing;
transfer mode;
other essential variables.
That is why a qualification matrix is so useful.
Build a Welder Qualification Matrix
A strong matrix can include:
Employee | Process | Material | Position | Qualification Range | Continuity / Review | WPS Authorised | Evidence Location |
Welder A | GTAW | Defined material | Pipe position | Defined range | Current | WPS-XXX | Folder / system |
Welder B | SMAW | Defined material | Plate / pipe | Defined range | Review due | WPS-YYY | Folder / system |
The value is not the spreadsheet itself.
The value is that production can answer:
Who may weld this?
without guessing.
Welding Certificate Age Is Not Enough
A qualification record must be read technically.
An employer should not rely simply on:
“He has a welding certificate.”
Different documents prove different things.
This becomes particularly important where continuity, revalidation or project acceptance matters.
Qualification status should be checked against the actual governing standard and production requirement.
ISO 3834 and ISO 14731: What Does the Welding Coordinator Control?
ISO 14731:2019 identifies essential welding-quality tasks and responsibilities involved in welding coordination and requires welding coordination personnel to be competent in the tasks allocated to them. ISO reviewed and confirmed this edition in 2024, so it remains current. ISO
The welding coordinator is therefore not simply:
“the experienced person everyone asks when something goes wrong.”
The organisation needs clearly allocated welding-coordination responsibility.
Depending on the operation, this can connect to:
technical review;
procedure control;
personnel;
production planning;
materials;
consumables;
equipment;
inspection;
subcontracting;
repair;
records.
The exact responsibilities depend on the manufacturer and applicable requirements.
Stage 5: Material Identification and Traceability
Traceability can fail surprisingly early.
A material certificate may arrive correctly.
Then the plate is cut.
Then the identification disappears.
Now the company knows what was purchased but cannot confidently prove which material ended up in which fabricated component.
A stronger system asks:
What arrived?
Which certificate supports it?
How was it identified?
How was identity preserved after cutting?
How is the component linked back to the material?
Traceability should survive production.
Not just goods receiving.
Stage 6: Welding Consumable Control
Consumable control is another place where paper systems can fail in the workshop.
Depending on process and requirements, consider:
correct filler classification;
batch or lot identification;
storage;
drying or holding requirements where applicable;
issue;
returns;
contamination;
gas selection;
identification at point of use.
The audit question is not merely:
“Do you have an electrode oven?”
It is:
Can you prove the correct consumable was controlled and used where required?
Stage 7: Equipment Suitability and Control
The organisation needs equipment suitable for the work being performed.
Relevant evidence can involve:
machine identification;
maintenance;
serviceability;
inspection;
calibration or validation where applicable;
ancillary equipment.
Do not create calibration records simply because the word “audit” sounds technical.
Control what genuinely requires control under the applicable system.
Stage 8: Controlled Production
This is where the paperwork becomes physical.
Production control can include:
joint preparation;
fit-up;
cleanliness;
tack welding;
preheat;
interpass control;
sequence;
distortion;
environmental conditions;
parameter control;
WPS adherence.
A quality system that only exists in the QA office is not controlling welding.
Stage 9: Inspection and Testing
Inspection must answer four questions:
What needs to be inspected?
Who is competent or authorised to inspect it?
What acceptance criteria apply?
Where is the result recorded?
Inspection may include:
visual inspection;
dimensional checks;
NDT;
destructive testing;
pressure testing;
other product-specific examinations.
Inspection is evidence.
It is not a substitute for process control.
Visual Inspection Starts Before the Final Weld
One of the most common misunderstandings is treating visual inspection as:
“look at the weld when it is finished.”
Useful visual control can begin earlier:
material condition;
preparation;
joint geometry;
alignment;
fit-up;
cleanliness;
tack welds.
Final inspection then assesses the completed work against the applicable requirements.
That makes visual inspection part of process control, not simply defect hunting at the end.
Stage 10: Non-Conformance, Repair and Reinspection
A weld defect should not disappear administratively because somebody ground it out and rewelded it.
A controlled system can require:
DEFECT
↓
NCR / RECORD
↓
EVALUATION
↓
APPROVED DISPOSITION
↓
REPAIR
↓
REINSPECTION
↓
CLOSE-OUT
↓
ROOT CAUSE / CORRECTIVE ACTION WHERE NEEDED
Repeated repair is data.
If the same defect returns, the question should become:
Why is the system allowing this problem to repeat?
Possible causes can include:
poor fit-up;
incorrect settings;
weak technique;
wrong consumable;
inadequate supervision;
poor procedure interpretation;
contamination;
training gaps.
This is where quality data should start influencing workforce development.
12 ISO 3834 Audit Warning Signs to Find Before the Auditor Does
Warning sign | What it may expose |
WPS is stored in QA but not available to production | Point-of-use control weakness |
Welder qualification does not match assigned work | Personnel-control gap |
Material identification disappears after cutting | Traceability weakness |
Consumable batch cannot be linked to production | Consumable-control weakness |
Repair welds occur without NCR records | Non-conformance-control weakness |
Same defect repeatedly returns | Corrective-action or skills gap |
Qualification records are spread across emails and folders | Evidence retrieval weakness |
Supervisor relies on memory to identify welders | Traceability weakness |
Subcontractor qualification records are unavailable | Subcontract-control weakness |
Inspection report cannot be linked to the weld | Evidence-chain weakness |
Course attendance is treated as proof of production competence | Competence-control weakness |
Audit preparation begins only when an audit date arrives | System exists for audit, not for production |
This is the real mindset change:
A strong ISO 3834 system should operate between audits, not only before audits.
Subcontracted Welding Does Not Remove Responsibility
Outsourcing the weld does not automatically outsource the quality risk.
Before subcontracted welding begins, establish what needs to be controlled.
Possible checks include:
subcontractor capability;
procedure evidence;
welder qualification;
inspection requirements;
records;
traceability;
contractual quality requirements.
The evidence should be available when needed.
What Should an ISO 3834 Audit-Readiness File Be Able to Show?
A useful file or digital system should allow the organisation to retrieve evidence without a scavenger hunt.
That can include:
requirements review;
procedures;
qualification records;
coordinator appointments;
material records;
consumable records;
equipment records;
production documentation;
inspection results;
NCRs;
repair records;
subcontract records;
final release evidence.
Do not confuse document volume with control.
A 500-page file can still be weak if the evidence does not connect.
Build the Training Matrix From Production Risk
A weak training matrix contains:
Name | Course | Date
A useful welding training matrix connects people to production.
Employee | Role | Process | Material | Position | Qualification Scope | Review | WPS | Training Gap | Evidence |
Now management can ask:
Who is qualified for this process?
Who may use this WPS?
Which qualifications require review?
Which recurring defects involve which personnel?
Which employees need gap training?
Which employees are ready for more advanced work?
Which experienced workers need assessment rather than beginner training?
That is a workforce-control system.
Training Attendance Is Not the Same as Demonstrated Competence
This distinction is critical.
A training attendance record may prove that somebody attended training.
It does not automatically prove that the person can produce the production weld required by the employer.
Where actual competence matters, consider:
practical assessment;
supervised production evidence;
process-specific qualification;
employer testing;
coded-welder testing where required.
Training should support competence.
It should not become another folder of attendance certificates disconnected from production.
Turn Defect Data Into Training Decisions
Suppose inspection data shows increasing lack of fusion.
Do not immediately send everybody on a generic welding course.
Investigate:
process;
preparation;
settings;
travel;
access;
technique;
consumables;
supervision.
Then define the gap.
Likewise:
Repeated pipe root defects
Possible response: pipe position / root-control development
TIG contamination
Possible response: cleanliness, shielding, tungsten, filler and heat-control development
MIG inconsistency
Possible response: setup, wire feed, voltage, gas, transfer and travel control
WPS not followed
Possible response: procedure interpretation + supervision + production control
The problem determines the training.
ISO 3834 vs Coded Welding
These are related.
They are not interchangeable.
ISO 3834
Controls the manufacturer's welding-quality system.
Coded-welder qualification
Demonstrates welder performance within a defined test and qualification range.
An organisation can therefore need:
a controlled ISO 3834 system
plus
appropriately qualified welding personnel
A coded welder does not automatically make the employer ISO 3834-compliant.
An ISO 3834-certified fabricator does not automatically make every employee qualified for every weld.
ISO 3834 vs Red Seal
These solve different questions.
Red Seal
Recognises artisan trade status.
Coded welding
Addresses welding performance within a particular qualification context.
ISO 3834
Addresses the manufacturer's welding-quality controls.
One person may need artisan recognition.
Another may need coded-welder qualification.
The employer may need manufacturer certification.
Do not collapse all three into the word:
“certified.”
ISO 3834 vs Visual Weld Inspection
Visual inspection supports the welding-quality system.
But inspection does not create weld quality.
A technically competent inspector may identify:
undercut;
profile problems;
dimensional issues;
surface cracking;
porosity;
misalignment;
other visible imperfections.
The system still needs to answer:
Why did the defect occur?
Was it accepted or rejected correctly?
Was repair controlled?
Did the same cause recur?
That is where inspection becomes quality data.
What Swift Skills Academy Can Help With
Swift Skills Academy's role should be stated precisely.
SSA can support employers with practical workforce development in areas such as:
welding-process skills;
engineering tools and preparation;
MIG / GMAW;
TIG / GTAW;
SMAW;
FCAW;
oxy-acetylene;
pipe welding;
coded-welding development;
competency assessment;
employer group training;
on-site welding and safety training;
artisan and ARPL pathway guidance.
What Swift Skills Academy does not do
SSA does not certify a manufacturer to ISO 3834.
Manufacturer certification in South Africa is handled through the appropriate certification route; SAIW Certification states that it is IIW-authorised to operate the ISO 3834 Manufacturer Certification Scheme in South Africa. SAIW
That distinction protects both the employer and SSA.
Employer Audit-Readiness Decision Checklist
Before buying training because an audit is approaching, answer these questions.
What is failing?
Is it:
welding technique?
procedure interpretation?
fit-up?
materials?
consumables?
inspection?
traceability?
supervision?
qualification evidence?
Who is affected?
One welder?
One shift?
One process?
An entire department?
What evidence proves the gap?
NCRs?
repair data?
inspection results?
test failures?
qualification records?
supervisor observations?
What intervention matches the gap?
process training?
competency assessment?
qualification preparation?
procedure interpretation?
supervisor development?
improved documentation?
The strongest training decision begins with evidence.
30-Day ISO 3834 Audit-Readiness Sprint
Days 1–5 — Map the evidence chain
Select real jobs and trace:
requirements → material → procedure → welder → inspection → release.
Days 6–10 — Test qualification control
Verify that assigned welders match production requirements.
Days 11–15 — Inspect WPS control
Check that current production instructions are controlled and available where needed.
Days 16–20 — Test traceability
Follow material and consumables through actual work.
Days 21–25 — Analyse NCRs and repairs
Look for recurring failure patterns.
Days 26–30 — Close the highest-risk gaps
Separate:
system gaps
from:
workforce capability gaps
and assign each one to an owner.
An audit-readiness sprint is not certification.
It is a way of finding your own weak evidence before somebody else finds it.
Frequently Asked Questions About ISO 3834 South Africa
Does ISO 3834 certify welders?
No. ISO 3834 relates to the welding-quality requirements of manufacturers and fabricators. Individual welders hold separate qualifications or performance-test records appropriate to the work.
Who certifies ISO 3834 companies in South Africa?
SAIW Certification states that it is authorised by the International Institute of Welding to operate the Manufacturer Certification Scheme in South Africa. SAIW
What are ISO 3834-2, ISO 3834-3 and ISO 3834-4?
They are the comprehensive, standard and elementary welding-quality-requirement levels respectively. The currently published editions are ISO 3834-2:2021, ISO 3834-3:2021 and ISO 3834-4:2021. ISO
Is ISO 3834 the same as ISO 9001?
No. ISO 3834-1 explicitly says that the ISO 3834 series is not a QMS standard replacing ISO 9001, although it can complement a wider quality-management system. ISO
What is ISO 14731?
ISO 14731:2019 addresses welding coordination tasks and responsibilities and the competence of welding coordination personnel. ISO confirmed the edition in 2024. ISO
What is the difference between a WPS and WPQR?
The WPS gives controlled production instructions for welding. The WPQR or equivalent qualification record supports the procedure qualification where required. A welder qualification is separate again and demonstrates individual performance within a defined range.
Can a qualified welder use any WPS?
No. The employer needs to ensure that the welder's qualification and authorisation match the production requirement and applicable qualification scope.
Does a coded welder automatically make a company ISO 3834-compliant?
No. Coded-welder qualification relates to individual welding performance. ISO 3834 applies to the manufacturer's quality controls.
Is a Red Seal the same as coded welding?
No. Red Seal relates to recognised artisan trade status. Coded welding relates to welder performance qualification under defined requirements.
What records may matter during an ISO 3834 audit?
Depending on the applicable quality level and operation, records may include requirements review, WPS/WPQR, personnel qualifications, coordinator responsibilities, material and consumable records, production evidence, inspections, NCRs, repairs and final quality records.
Does ISO 3834 apply to field welding?
Yes. ISO's published scope states that the series applies to manufacturing both in workshops and at field installation sites. ISO
Can training guarantee an ISO 3834 audit pass?
No. Training can help close genuine workforce capability gaps, but manufacturer certification and audit performance depend on the complete quality system and applicable certification process.
Should every welding defect result in retraining?
No. The root cause should be investigated first. The defect may arise from training, procedure, materials, equipment, fit-up, supervision or another control weakness.
How should employers choose welding training before an audit?
Use production and quality evidence to identify the exact competence gap, then choose training or assessment that addresses that gap.
Authoritative Sources & Regulatory References
Authoritative Source | What It Supports |
Current framework overview, selection of comprehensive/standard/elementary quality levels and application to workshop and field installation activities. ISO | |
Comprehensive quality requirements for fusion welding. ISO | |
Standard quality requirements for fusion welding. ISO | |
Elementary quality requirements for fusion welding. ISO | |
Standards/documents relevant to claiming conformity to Parts 2, 3 or 4. ISO | |
Welding coordination tasks, responsibilities and competence. ISO | |
South African IIW-authorised manufacturer certification route. SAIW | |
Public register of certified manufacturers and certification levels. SAIW |
Read More
Read More | Why Read It |
Understand what a welder-performance qualification actually proves and why qualification scope matters when assigning personnel to controlled production. | |
Understand continuity, revalidation and the difference between course certificates, coded-welder qualifications and Red Seal artisan status. | |
Follow the quality chain into inspection, visible imperfections, defect reporting and escalation where visual examination alone is not enough. |
Final Word
ISO 3834 should not become a paperwork exercise.
A strong welding-quality system connects:
REQUIREMENTS
→ PROCEDURE
→ QUALIFIED PEOPLE
→ MATERIALS
→ CONTROLLED PRODUCTION
→ INSPECTION
→ NON-CONFORMANCE
→ RECORDS
→ IMPROVEMENT
The audit does not become difficult because an auditor asks difficult questions.
It becomes difficult when the company cannot connect its own evidence.
A WPS with no production control is weak.
A qualified welder assigned outside the relevant scope is weak.
A material certificate with lost traceability is weak.
An NCR with no root-cause response is weak.
A training certificate with no demonstrated production competence is weak.
And that is the opportunity for this page.
It should not try to compete with SAIW as the authority that certifies manufacturers.
