ISQ Certification – gas networks contractors and welders

This training course gives access to the Portuguese certifications and license of Gas Networks Contractor, and Copper and Polyethylene Piping Welder. Participants will be able to: Design gas networks, in accordance…

About this service:

This training course gives access to the Portuguese certifications and license of Gas Networks Contractor, and Copper and Polyethylene Piping Welder. Participants will be able to: Design gas networks, in accordance with the legislation, and to identify the assorted equipment and accessories in a network Perform welds in copper and polyethylene and to assess its quality Within the scope of this course, it is possible to design specific modules taking into account the areas the participant wishes to be granted accreditation in: Gas contractor Participants will acquire knowledge about: Legislation related to gas networks Utilisation of different type of networks Correctly perform the installation of a gas network under guidance of a gas senior technician Gas welder Participants will be able to perform welds in copper and polyethylene and to further assess its quality. Copper Participants will be able to master the methods of copper welding, handling of copper pipes and fittings and will know what the criteria for acceptance of welding are and will know how to correctly perform welds in copper piping. Polyethylene Participants will be able to know welding methods in polyethylene (butt weld and electro-weld), handling and storage of pipes and fittings in polyethylene and will have sufficient knowledge on criteria of  welding acceptance and will be able to correctly perform welding in polyethylene piping.  

  • Type of Service: Certification & Qualification of Personnel, Training
  • Areas: Construction & Infrastructures, Energy & Power Generation, Oil & Gas, Public Administration
  • Business Unit: ISQ

How we can help


We act comprehensively throughout the value chain, providing you with access to over 250 specialised services, hundreds of technical specialists and the accumulated experience of over 50 years operating in these areas around the world, leading some of the most significant national and international projects.

What sets us apart


  • The diversity of our services
  • Comprehensive laboratory capacity with accredited laboratories, fixed and mobile, equipped with the latest technology
  • The recognized quality and safety in our services
  • Relevant international partnerships with market leaders and entities such as the UN, ESA, CERN, ITER
  • The competence of our team of PhDs, scientists, researchers, engineers and specialized technicians with relevant and solid experience
  • The close relationship with our customers, supported by a network of branches and subsidiaries around the world
  • The accreditations, certifications and notifications of most of the activities carried out
  • International activity in markets such as aerospace, nuclear fusion, physics and astrophysics, oil and gas, sustainability and circular economy
  • The ability to support you in Innovation activities

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