Welder — Tig · Finland

By Tanishq Chauhan · Reviewed by Bayswater Compliance Desk · Updated April 2026

Country Code: FI Profession Category: Metal Fabrication / Pipe Welding Specialization: Putkihitsaaja (Pipe Welder) / TIG-hitsaaja (141) Last Updated: February 2026 Regulatory Complexity: Very High (PED, nuclear/pressure standards) Document Maturity: Gold Standard (Hard Reset)

Executive Summary

Finland’s TIG welders (TIG-hitsaaja) are the surgeons of the metal industry. Whether working on District Heating (Kaukolämpö), Paper Mills (Paperitehdas), or Bioproduct plants, the standard is X-Ray quality. The regulatory framework is driven by the Pressure Equipment Directive (PED) and strict SFS-EN ISO 9606-1 qualification. Unlike structural MAG welding where speed matters, here cleanliness, purge quality, and penetration profile are everything. A welder who touches the tungsten to the pool and doesn’t grind it immediately is not a welder in Finland; they are a liability.

Finland is a unitary parliamentary republic and a Nordic constitutional democracy that acceded to the European Union on 1 January 1995 and has been a Schengen Member State since 25 March 2001. Labour and immigration legislation is codified at national level by the Eduskunta, with statutes published in the Suomen säädöskokoelma and consolidated through the public legal database at https://www.finlex.fi. Implementing regulation issues from valtioneuvosto (Government) and from sectoral ministries — principally työ- ja elinkeinoministeriö (TEM), sosiaali- ja terveysministeriö (STM), and sisäministeriö. The Åland Islands hold devolved competence in some areas but do not vary work-permit thresholds or posted-worker rules.

The defining structural feature of the Finnish labour regime is, as in Sweden, the absence of a statutory minimum wage. Wage-setting is delegated to sector-specific collective bargaining agreements (työehtosopimus, TES). Unlike Sweden, Finland operates an active erga omnes extension mechanism: a TES meeting the representativeness threshold under the Työehtosopimuslaki (436/1946) and Työsopimuslaki (55/2001, chapter 2 §7) is declared yleissitova (universally binding) by the työehtosopimuksen yleissitovuuden vahvistamislautakunta. The principal construction-sector instrument, Rakennusalan työehtosopimus (Rakennusalan TES, concluded between Rakennusliitto and Rakennusteollisuus RT), is universally binding, with the consequence that all employers — domestic and foreign — engaging construction workers on Finnish soil must apply its terms as the floor.

The regime has been modernised through several discrete reforms. The Tilaajavastuulaki (Act on the Contractor’s Obligations and Liability when Work is Contracted Out, 1233/2006), in force since 1 January 2007 and amended in 2012 and 2015, imposes pre-contract due-diligence obligations on principals regarding the tax, social-security, and CBA position of every sub-contractor. The Veronumero (tax number) regime, enacted via Act 363/2012, has required every worker on a Finnish construction site to display a personal tax number on a photo-bearing identity card since 1 September 2012, with the public Veronumerorekisteri operative since 1 March 2013. The Migri work-permit reform of 2023-2024, enacted through amendments to the Ulkomaalaislaki (301/2004), compressed processing for the Erityisasiantuntija (Specialist) permit and introduced the Sertifioitu työnantaja (Certified Employer) track.

Primary supervisory authorities are: Maahanmuuttovirasto (Migri) at https://migri.fi; aluehallintovirasto (AVI, Regional State Administrative Agency) at https://avi.fi with the occupational-safety portal at https://www.tyosuojelu.fi; Verohallinto at https://www.vero.fi; Kansaneläkelaitos (Kela) at https://www.kela.fi; Eläketurvakeskus (ETK) at https://www.etk.fi; and Tapaturmavakuutuskeskus (TVK, formerly VKK) at https://www.tvk.fi.

1. Legal & Regulatory Framework

Professional Recognition & Licensing

• Regulated Trade: Pressure welding is strictly controlled.
• Certifications:
  • Pätevyystodistus (Qualification Certificate): Must be valid according to SFS-EN ISO 9606-1.
  • Tulityökortti: Hot Work Card (Mandatory).
  • Työturvallisuuskortti: Occupational Safety Card.
  • PED Approval: For categories II-IV, welder must be approved by a Notified Body (NoBo) like Inspecta.

Key Laws Categories

• PED 2014/68/EU: The EU directive governing pressure equipment.
• SFS-EN ISO 5817: Quality levels for imperfections (Class B is standard for pipes).
• SFS-EN ISO 3834: Quality requirements for fusion welding.

Finland is a unitary parliamentary republic and a Nordic constitutional democracy that acceded to the European Union on 1 January 1995 and has been a Schengen Member State since 25 March 2001. Labour and immigration legislation is codified at national level by the Eduskunta, with statutes published in the Suomen säädöskokoelma and consolidated through the public legal database at https://www.finlex.fi. Implementing regulation issues from valtioneuvosto (Government) and from sectoral ministries — principally työ- ja elinkeinoministeriö (TEM), sosiaali- ja terveysministeriö (STM), and sisäministeriö. The Åland Islands hold devolved competence in some areas but do not vary work-permit thresholds or posted-worker rules.

The defining structural feature of the Finnish labour regime is, as in Sweden, the absence of a statutory minimum wage. Wage-setting is delegated to sector-specific collective bargaining agreements (työehtosopimus, TES). Unlike Sweden, Finland operates an active erga omnes extension mechanism: a TES meeting the representativeness threshold under the Työehtosopimuslaki (436/1946) and Työsopimuslaki (55/2001, chapter 2 §7) is declared yleissitova (universally binding) by the työehtosopimuksen yleissitovuuden vahvistamislautakunta. The principal construction-sector instrument, Rakennusalan työehtosopimus (Rakennusalan TES, concluded between Rakennusliitto and Rakennusteollisuus RT), is universally binding, with the consequence that all employers — domestic and foreign — engaging construction workers on Finnish soil must apply its terms as the floor.

The regime has been modernised through several discrete reforms. The Tilaajavastuulaki (Act on the Contractor’s Obligations and Liability when Work is Contracted Out, 1233/2006), in force since 1 January 2007 and amended in 2012 and 2015, imposes pre-contract due-diligence obligations on principals regarding the tax, social-security, and CBA position of every sub-contractor. The Veronumero (tax number) regime, enacted via Act 363/2012, has required every worker on a Finnish construction site to display a personal tax number on a photo-bearing identity card since 1 September 2012, with the public Veronumerorekisteri operative since 1 March 2013. The Migri work-permit reform of 2023-2024, enacted through amendments to the Ulkomaalaislaki (301/2004), compressed processing for the Erityisasiantuntija (Specialist) permit and introduced the Sertifioitu työnantaja (Certified Employer) track.

Primary supervisory authorities are: Maahanmuuttovirasto (Migri) at https://migri.fi; aluehallintovirasto (AVI, Regional State Administrative Agency) at https://avi.fi with the occupational-safety portal at https://www.tyosuojelu.fi; Verohallinto at https://www.vero.fi; Kansaneläkelaitos (Kela) at https://www.kela.fi; Eläketurvakeskus (ETK) at https://www.etk.fi; and Tapaturmavakuutuskeskus (TVK, formerly VKK) at https://www.tvk.fi.

2. Role Scope & Industry Reality

Core Duties

• Pipe Welding (Putkihitsaus): Stainless (Austenitic/Duplex) and Carbon Steel pressure pipes.
• Purging (Juurikaasu): Setting up argon purge dams for stainless roots.
• Fit-up: Assessing the fit (Gap, Misalignment/Hi-Lo) before striking an arc.
• Visual Inspection: Self-check of root and cap relative to Class B limits.
• Post-Weld: Passivation/Pickling (Peittaus) knowledge.

Typical Roles

• Putkihitsaaja: Pipe Welder (Site based).
• Konepajahitsaaja: Workshop welder (Prefab).
• Traveling Welder (Reissumies): Moves between shutdowns (Seisokki).

Out of Scope

• Structural Steel: Usually MAG (135).
• Robotic Welding operator: Different trade.

3. Qualification & Experience Benchmarks

Education & Experience Timeline

• Pathway: Vocational School -> IWS (International Welding Specialist) optional.
• Experience Benchmark:
  • Level 1 (Aloittelija): Small bore, bench work, downhand position (PA/1G).
  • Level 2 (Ammattilainen): Position welding (PC/2G, PH/5G). Stainless root mastery.
  • Level 3 (Luokkahitsaaja): H-L045 (6G) Restricted Access. Exotic materials (Duplex/Titanium). Mirror welding.

Equivalent Experience for Foreigners

• Gap: “I can weld TIG” vs “I can weld X-Ray TIG walking the cup”.
• Purge Discipline: In many non-EU countries, nitrogen or poor argon is used. In Finland, high-purity Argon (99.99%) is standard, and O2 levels in the purge are measured (<50ppm).

Finland does not operate a closed-trade Meisterzwang regime equivalent to Germany’s Handwerksordnung. Vocational education through the ammatillinen perustutkinto in rakennusala under Laki ammatillisesta koulutuksesta (531/2017) is the customary route to journeyman classification but is not a statutory bar for most building trades. Bricklayers (muurarit), carpenters (kirvesmiehet), formworkers, ironworkers (raudoittajat), concrete workers, plasterers (rappaajat), and general operatives (rakennusmiehet) may be engaged on the strength of demonstrated competence plus the mandatory site-access certifications below.

The defining trade-restriction layer in Finnish construction is administrative and certification-based. Three instruments are mandatory:

1. Veronumero (tax number). Every person performing work on a Finnish construction site must hold a personal Veronumero issued by Verohallinto under the Verotusmenettelylaki amendments (Act 363/2012), displayed on a photographic identity card. The number is recorded in the public Veronumerorekisteri (https://www.vero.fi/en/individuals/tax-cards-and-tax-returns/arriving_in_finland/work_in_finland/working-on-a-construction-site/). Foreign workers obtain the number at a Verohallinto service point. Without a Veronumero no work may lawfully be performed and the principal is liable to a Verohallinto control fee.

2. Valttikortti (Valtti card). Administered by Suomen Tilaajavastuu Oy (https://www.tilaajavastuu.fi/en/valtti-card/), Valttikortti is the dominant electronic site-access ID card. It encodes worker identity, photograph, Veronumero, employer, and validity, and is read by site turnstiles. It is contractually required by virtually every main contractor (YIT, Skanska, NCC, SRV, Fira, Lujatalo, Hartela) and is linked through Tilaajavastuu.fi to the employer’s Tilaajavastuulaki compliance status.

3. Työturvallisuuskortti (Occupational Safety Card). Administered by Työturvallisuuskeskus TTK (https://www.tyoturvallisuuskortti.fi), this is a sector-recognised safety induction certificate valid for five years and contractually required on virtually every site — the Finnish counterpart to SCC/VCA. Training is available in Finnish, Swedish, English, Russian, Estonian, Polish, and other languages; typical 2026 cost EUR 90-120 [verify 2026].

Statutory occupational-safety duties are concentrated in the Työturvallisuuslaki (738/2002) and Valtioneuvoston asetus rakennustyön turvallisuudesta (205/2009). The päätoteuttaja (main contractor) and rakennuttaja (principal) carry primary safety-coordination duties under Directive 92/57/EEC.

Further statutory trade-activity restriction:

a. Electrical work under Sähköturvallisuuslaki (1135/2016) requires the operator to act under an undertaking holding sähkötöiden johtaja registration with Tukes (https://tukes.fi). Authorisation classifications S1, S2, S3 are granted on formal qualifications and supervised experience. Foreign electricians may seek recognition under Laki ammattipätevyyden tunnustamisesta (1384/2015) transposing Directive 2005/36/EC.

b. Pressure equipment and code welding under Painelaitelaki (1144/2016) require qualification under EN ISO 9606-1 with procedure qualification under EN ISO 15614-1.

c. Tulityökortti (Hot Work Card) administered by SPEK (https://www.spek.fi) is contractually required for welding, cutting, and grinding outside designated hot-work areas, under property-insurance terms drafted by Finanssiala ry. Valid five years.

Primary sources:

• Tilaajavastuulaki 1233/2006: https://www.finlex.fi/fi/laki/ajantasa/2006/20061233
• Työturvallisuuslaki 738/2002: https://www.finlex.fi/fi/laki/ajantasa/2002/20020738
• Valtioneuvoston asetus rakennustyön turvallisuudesta 205/2009: https://www.finlex.fi/fi/laki/ajantasa/2009/20090205
• Sähköturvallisuuslaki 1135/2016: https://www.finlex.fi/fi/laki/ajantasa/2016/20161135
• Verohallinto construction-site Veronumero: https://www.vero.fi/en/individuals/tax-cards-and-tax-returns/arriving_in_finland/work_in_finland/working-on-a-construction-site/

4. Language & Communication Requirements

Minimum Functional Level

• A2 Finnish / B1 English.
• Technical Literacy: Must read WPS (Welding Procedure Specification) to know Amps, Gas flow, and Interpass temp.

Key Vocabulary

• Hitsaus (Welding)
• Juuri (Root)
• Pinta (Cap/Face)
• Kaasu (Gas)
• Virta (Current/Amps)
• Railo (Groove/Gap)
• Sula (Weld pool)
• Lopetusreikä (Crater/Pin hole)

Finland does not impose a statutory CEFR threshold on labour migration to construction or EPC trades. Finland is constitutionally bilingual in Finnish and Swedish under Suomen perustuslaki (731/1999) §17. The principal working language on most construction sites is Finnish, but English is widely tolerated on EPC and industrial mega-projects, particularly: Olkiluoto OL3/OL4 (TVO) nuclear engagements, large-scale battery and data-centre construction (Vaasa, Kotka, Espoo), forest-product capacity projects (Kemi, Äänekoski), and offshore-wind developments along the Bothnian coast. Swedish-speaking sites are concentrated in the Vaasa-Kokkola-Pietarsaari region and on Åland.

Safety induction is increasingly available in English on major industrial projects. Työturvallisuuskortti is issued in Finnish, Swedish, English, Russian, Estonian, Polish, Lithuanian, and other languages under TTK supervision. Tulityökortti is similarly multi-language. 2026 training cost is typically EUR 90-120 for Työturvallisuuskortti and EUR 110-150 for Tulityökortti [verify 2026]. Sähkötyöturvallisuuskortti (SFS 6002) is required for electrical-adjacent work.

For long-term integration (Ulkomaalaislaki §56 permanent residence; Kansalaisuuslaki 359/2003 §13 naturalisation), Finnish or Swedish proficiency at YKI 3 (CEFR B1 equivalent) is required, evidenced through the YKI test administered by Opetushallitus. Kotoutumiskoulutus integration training is free of charge through TE-toimisto under the kotoutumislaki (Act 681/2023 in force from 1 January 2025).

5. Technical Competency Assessment Rubric

Evaluate the candidate on the following 10 dimensions.

Total Score Rule: Sum of (Score x Weight). Pass is 7/10.

6. Practical Test Specifications

Total Duration: 3 Hours

Test 1: The “Dirty Tungsten” Trap (Discipline)

• Scenario: During the root run, the candidate accidentally touches the tungsten electrode to the filler wire or the pool (Contamination).
• The Trap: The observer watches silently.
• Pass Criteria: Candidate STOPS IMMEDIATELY. Removes the tungsten, regrinds it, and cleans the weld spot with a burr/grinder before restarting.
• Fail Behavior: Continues welding with a contaminated tungsten (Wandering arc / Tungsten inclusion). IMMEDIATE FAIL.

Test 2: The Purge Setup (Process) (45 Minutes)

• Task: Set up a purge for a 6-inch Stainless Steel pipe butt weld.
• The Trap: Tape is available, but no vent hole is pre-poked, or the gas flow is set too high (Turbulence).
• Criteria:
  • Seal: Airtight taping.
  • Vent: Small hole at top for gas exit.
  • Flow: Correct flow rate (e.g., 10-15 L/min purge, then reduce for weld).
  • O2 Check: Wait until analyzer shows 0.01% (100ppm) or less.

Test 3: The 6G / H-L045 Fixed Pipe (90 Minutes)

• Task: Weld Carbon Steel or Stainless pipe (Ø114mm x 6mm wall) in 45° fixed position.
• Criteria:
  • Root: Full penetration, no suck-back, no root concavity >0.5mm.
  • Cap: Regular weave or stringers. Height max 2mm. Smooth transition.
  • Visual: Class B (ISO 5817). No undercut, no porosity.

7. Theoretical / Oral Knowledge Test

Format: 30 Questions (Verbal)

Section A: Process Theory

1. What is H-L045? (Pipe fixed at 45 degrees, welding upwards).
2. Why use Argon backing gas? (Prevent oxidation “Sugaring” of the root).
3. What color is the Tungsten for Stainless (usually)? (Grey - Ceriated, or Gold - Lanthanated. Red - Thoriated is radioactive/phased out).
4. What is “Interpass Temperature”? (Max temp before starting next pass. Usually <150°C for excessive heat input prevention).
5. Effect of too much heat on Stainless? (Carbide precipitation / Corrosion resistance loss / Distortion).
6. Gas flow rate for TIG cup? (Approx 8-12 L/min depending on cup size).
7. What does “ER316L” mean? (Filler wire for 316 Stainless. L = Low Carbon).
8. What is “Sula”? (Weld pool).
9. Emergency number? (112).
10. Hot work permit validity? (Usually for the shift/task, requires fire watch).

Section B: Standards & Material 11. Difference: 304 vs 316? (316 has Molybdenum, better corrosion resistance). 12. Can you weld Duplex with 316 wire? (No. Need Duplex wire 2209). 13. What is a “Heat Number”? (Traceability code on the pipe/fitting). 14. Why remove the oxide layer after welding? (Restore corrosion resistance. Pickling/Passivation). 15. What is “Lack of Fusion”? (Weld metal didn’t bond with base metal). 16. Is undercut allowed? (Class B: <0.5mm, smooth transition). 17. What is “Hi-Lo”? (Internal misalignment of pipe edges). 18. Function of a gas lens? (Laminar gas flow, better coverage, stick-out). 19. What is “Walking the Cup”? (Technique resting ceramic on pipe). 20. PED Category 3 - who approves welder? (Notified Body).

Section C: Workplace 21. Standard shift length? (8h, often 10h in shutdowns). 22. PPE for pickling paste? (Chemical gloves, face shield, apron. It’s Acid). 23. Grinder safety? (Guard on, handle on, goggles + visor). 24. Fire Watch duties? (Watch for sparks, stay 1 an hour after work). 25. Reporting defects? (To Foreman/QA immediately). 26. Lunch break? (30 mins). 27. Coffee break? (2 x 15 mins). 28. Alcohol? (Zero). 29. Phone usage? (Breaks only). 30. Timesheet? (Daily accurate).

8. Workplace Culture & Behavioral Expectations

”Laatu” (Quality) first

• No Hiding: If you make a bad weld, cut it out or report it. Hiding it until X-Ray finds it is the worst sin.
• Independence: You setup your own machine, your own gas, your own prep.

1. Veronumero is mandatory before any construction work begins on a Finnish site. The number is issued by Verohallinto upon application at a service point with passport and employment documentation; lead time is typically 1-3 working days. The Veronumerorekisteri is a public register at https://www.vero.fi and the principal contractor is liable to a control fee for any worker on site without a recorded number. Per-trade rubrics must verify Veronumero issuance and active register status before any deployment workflow.

2. Tilaajavastuulaki (1233/2006) imposes due-diligence liability on the principal and on every intermediate contractor for the tax, social-security, and CBA position of the immediate sub-contractor. Failed audits trigger principal fines (EUR 2,500-22,000, escalated to EUR 22,000-160,000 for systemic breaches under §9a). The Tilaajavastuu.fi service automates documentation but does not absolve underlying liability. Per-trade rubrics must verify rolling Tilaajavastuu compliance for the engaging employer of record.

3. Rakennusalan TES is universally binding through the yleissitova mechanism in Työsopimuslaki chapter 2 §7. All employers — domestic, EU posting, or third-country — must apply Palkkaryhmä I-VI tariffs plus matkakustannusten korvaus, päiväraha, helpotuspäivän palkka, lomakorvaus, and where applicable akkord settlement. Per-trade rubrics must reference the worker’s mapped Palkkaryhmä and the full allowance schedule, not the bare hourly rate.

4. Olkiluoto OL3/OL4 and other large industrial-EPC projects accept English-only crews and operate predominantly in English with multi-language safety induction; non-Olkiluoto, non-mega-project sites are typically Finnish-speaking with Swedish-speaking pockets in Ostrobothnia and on Åland. Per-trade rubrics must verify the deployment-site language profile separately from country-level tolerance assumptions.

5. Akkordi (urakkapalkka, piecework) is the dominant compensation mode on Finnish shell-and-core construction and routinely lifts effective hourly earnings 20-40% above Palkkaryhmä IV tuntipalkka base. The urakkalaskelma settlement is governed by Rakennusalan TES and is the principal driver of journeyman take-home variation between sites. Per-trade rubrics modelling worker take-home or deployment cost should treat akkord uplift as a site-level variable, not a national constant.

9. Red Flags & Instant Disqualifiers

• ❌ The Sugar Daddy: Failing Test 2 (Welding stainless without purge).
• ❌ Dirty Tips: Failing Test 1 (Welding with contaminated tungsten).
• ❌ The Grinder: grinding excessive root to hide lack of penetration.
• ❌ Gas Mix: Using CO2/Argon Mix (MAG gas) for TIG.
• ❌ No Penetration: Root pass fails visual.

10. Country-Specific Adaptation Gaps

Common Challenges for Foreign Welders in Finland

1. X-Ray Percentage

• Context: District heating/Nuclear lines have 10-100% NDT.
• Gap: “It looks good on outside.”
• Correction: It must be good on inside. RT doesn’t lie.

2. Material Traceability

• Context: Transferring heat numbers is mandatory.
• Gap: Cutting pipe and losing the stamp.
• Correction: Always transfer heat number before cutting.

Five recurring failure modes generate the majority of enforcement actions and chain-liability exposures:

1. AVI notification omission. Failure to lodge the AVI lähetetty työntekijä notification before work begins, or with incomplete identity or duration data, attracts a laiminlyöntimaksu under §35 (EUR 1,000-10,000 per breach, multiplied for systemic patterns) [verify 2026] and triggers an audit cascade across Verohallinto, ETK, and TVK. Each new posting address requires a fresh notification.

2. Rakennusalan TES wage non-parity. Because Rakennusalan TES is yleissitova, foreign and domestic employers are equally bound. The trap is acute on omitted CBA components: matkakustannusten korvaus, päiväraha, helpotuspäivän palkka, lomakorvaus, and akkord settlement under the urakkalaskelma framework. An hourly rate at or above Palkkaryhmä IV but missing these components is a Rakennusliitto-actionable underpayment and exposes the principal to joint-liability claims under Posted Workers Act §13.

3. Veronumero missing or expired. Engaging a worker without a valid Veronumero recorded in the Veronumerorekisteri is a breach of the Verotusmenettelylaki construction regime and exposes the principal to a control fee. Lead time at a Verohallinto service point is typically 1-3 working days but can extend on document-verification queries.

4. Tilaajavastuulaki due-diligence failure on subcontractors. Under §5, the principal must obtain — before contract signature — verovelkatodistus (max 3 months old), TyEL certificate, vastuuvakuutus position, tapaturmavakuutus cover, työterveyshuoltosopimus, and CBA position. Failure attracts a laiminlyöntimaksu of EUR 2,500-22,000 (escalated to EUR 22,000-160,000 under §9a for systemic breaches) [verify 2026]. Tilaajavastuu.fi automates documentation but does not absolve underlying liability.

5. Valttikortti not active. Site access without a valid Valttikortti, or under an expired card, is a contractual breach with virtually all main contractors. The card is linked through Tilaajavastuu.fi to the employer’s compliance status; if the employer falls out of compliance, the card is automatically suspended and the worker is locked out at the next turnstile read. The trap is acute for posted-worker employers who do not maintain rolling Tilaajavastuu compliance through the 6-monthly renewal cycle.

11. Scoring Interpretation & Hiring Guidance

• 0-5 (Fail): Cannot pass X-Ray.
• 6-7 (TIG-hitsaaja): Good for standard pipes.
• 8-10 (Luokkahitsaaja): Nuclear/High Pressure grade.

12. References & Resources

Regulatory Bodies

1. Inspecta / Kiwa: (Notified Bodies).
2. Energiateollisuus: (Energy Industry standards).

Standards

3. SFS-EN ISO 9606-1: (Welder Qual).
4. SFS-EN ISO 5817: (Quality Levels).

Appendix: Research Log

1. Source Queries

• Query 1: “Finland TIG welder duties salary SFS-EN ISO 9606-1 district heating”
• Query 2: “Finland pipe welder putkihitsaaja PED regulations”
• Query 3: “Stainless steel purging standards Finland welding”

2. Key Findings & Validation

• Role: Putkihitsaaja is the term. Focus on PED pressure lines [3, 4].
  • Impact: Theory Section & Executive Summary.
• Standards: SFS-EN ISO 9606-1 and PED are the “Bible” [5, 6].
  • Impact: Qualification section.
• Materials: Duplex and Stainless are common in Finnish industry (Paper/Bio).
  • Impact: Competency Rubric (Material Tech).
• Traps: Contaminated Tungsten and Purge failures are classic triggers for rejection in high-spec jobs.
  • Impact: Practical Test 1 & 2.

3. References

• [3] Hansawork: Welder duties - [https://hansawork.com/]
• [5] DEKRA FI: PED & Welders - [https://www.dekra.fi/]
• [6] WorkerInFinland: Welding Cards - [https://www.workerinfinland.com/]