Registration number (WIID)Project No.TitleStatus
10444LVS EN 12279:2000Gas supply systems - Gas pressure regulating installations on service lines - Functional requirementsStandarts spēkā
10891LVS 423:2002 /A1:2009General requirements for corrosion protection of natural gas underground steel pipelinesStandarts spēkā
59050LVS EN 12831-3:2017/NA:2020Energy performance of buildings - Method for calculation of the design heat load - Part 3: Domestic hot water systems heat load and characterisation of needs, Module M8-2, M8-3- National AnnexStandarts spēkā
10517LVS EN 305:2003 LHeat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangersStandarts spēkā
59188LVS 423:2021General requirements for corrosion protection of natural gas underground stel pipelinesStandarts spēkā
59123LVS 1063:2021Gas appliances. Infrared radiance gas heating appliances. Appliances without organized gas discharge into flues (light emitters)Standarts spēkā
59244LVS 1067:2021Operational safety rules for underground gas storage systemsStandarts spēkā
59124LVS 1064:2021Gas appliances. Infrared radiance gas heating appliances. Appliances with organized gas discharge into flues (dark emitters)Standarts spēkā
59189LVS 420:2021Gas appliances. Conditions for installation of gas appliancesStandarts spēkā
59049LVS EN 15316-1:2017/NA:2020Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 1: General and Energy performance expression, Module M3-1, M3-4, M3-9, M8-1, M8-4 - National AnnexStandarts spēkā
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