Items tagged with CALCULATION Files

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Floor heating systems: Design and type testing of waterborne heat systems for lightweight structures (NT VVS 127)

NT VVS 127

  • This standard describes procedures and prerequisites for determining the heat output from floor heating systems in residential buildings, offices and other buildings put to similar uses.

File size: 4.49 MB Download

Intercomparison and method for uncertainty calculation of water and heat flow (NT TR 610)

NT TR 610

  • A relatively high utilisation of district heating and limited resources of drinking water makes metering of water and heat of great importance in both the Nordic and the Baltic countries. This has further resulted in a heavy focus on testing and calibration of the meters as well as on the uncertainty of the meter installation.

File size: 513.25 KB Download

Inter-laboratory comparison of fatigue test with evaluation of the participating laboratories calculations of measurement uncertainty (NT TR 533)

NT TR 533

  • In this paper a fatigue testing inter-laboratory comparison is presented. Six Nordic laboratories performed fatigue tests on steel specimens. The specimens were tested with different stress levels (460 MPa, 430 MPa and 400 MPa) and with the load ratio R=Smin/Smax =0.1. On each level four specimens were tested. The participating laboratories reported the results together with measurement uncertainty.

Nordtest

Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.