Registration number (WIID)Project No.TitleStatus
10723LVS EN 12732:2011 LGas supply systems – Welding steel pipework – Functional requirementsAtcelts
10724LVS EN 1594:2011 LGas supply systems - Pipelines for maximum operating pressure over 16 bar - Functional requirementsAtcelts
10725LVS EN 1918-5:2011 LGas supply systems - Underground gas storage - Part 5: Functional recommendation for surface facilitiesAtcelts
10708LVS 363:2009 Additional requirements for corrosion protection of underground steel pipelinesAtcelts
10815LVS EN 12050-2:2003 LWastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2: Lifting plants for faecal-free wastewaterAtcelts
10804LVS 419:2002 /A1:2004Internal gas pipelines - InstallationAtcelts
59028LVS EN 16798-3:2018/NA:2020Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential buildings - Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4). National AnnexAtcelts
10790LVS 421:2002Gāzes sadales un lietotāja sistēmas - Additional requirements for desigh, construction and repair of PE gas pipelinesAtcelts
10791LVS 421:2010 /A1:2013Gas distribution and Customer systems. Additional requirements for design, construction and repair of PE gas pipelinesAtcelts
11005LVS EN ISO 6946:2003 +A1 LBuilding components and building elements - Thermal resistance and thermal transmittance - Calculation methodAtcelts
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