Registration number (WIID)Project No.TitleStatus
10708LVS 363:2009 Additional requirements for corrosion protection of underground steel pipelinesAtcelts
10721LVS EN ISO 17637:2011 LNon-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)Atcelts
10722LVS EN 12327:2011 LGas supply systems – Pressure testing, commissioning and decommissioning procedures. Functional requirementsAtcelts
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
10764LVS 417:2011 /A1:2014Gas distribution and Customer systems - External gas pipelines - DesignAtcelts
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
10792LVS EN 1555-4:2011 LPlastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: ValvesAtcelts
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