Registration number (WIID)Project No.TitleStatus
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
10722LVS EN 12327:2011 LGas supply systems – Pressure testing, commissioning and decommissioning procedures. Functional requirementsAtcelts
10850LVS 417:2002 /A1:2004Gas distribution and Customer systems - External gas pipelines - DesignAtcelts
58740LVS EN 16726:2016Gas infrastructure - Quality of gas - Group HAtcelts
11005LVS EN ISO 6946:2003 +A1 LBuilding components and building elements - Thermal resistance and thermal transmittance - Calculation methodAtcelts
10837LVS 445-1:2011 /A1:2012Operation and Maintenance of natural gas distribution and Consumer supply systems with max operation pressure 1,6 Mpa (16 bar). Part 1:General requirementsAtcelts
10877LVS EN 1264-2:1997Floor heating - Systems and components - Part 2: Determination of the thermal outputAtcelts
10883LVS EN 832:2003 +AC LThermal performance of buildings - Calculation of energy use for heating - Residential buildingsAtcelts
11217LVS EN 12098-1:1996Control for heating systems - Part 1: Outside temperature compensated control equipment for hot water heating systemsAtcelts
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