NT Technical Reports Archive - This is the subtitle

Here you can find and download all published NT Technical Reports.

NT Technical Reports Files - Subtitle above the items

File size: 3.17 MB Download

Traceable calibration and uncertainty of measurements in scanning electron microscopy NT TR 252

NT TR 252

  • The objective of this study was to develop guidelines for measuring quantitative chemical compositions and dimensions in scanning electron microscopy (SEM) to a predetermined level of uncertainty with the help of the new publication ISO/TAG4/WG 3 (June 1992): Guide to the Expression of Uncertainty in Measurement.

    A literature survey was made in order to see what relevant standards or recognised procedures are available for measurements in SEM.

    This report containes worked examples of uncertainty analysis and application of the ISO/TAG4/WG 3 guide for measurements in SEM. The results of experiments and the literature survey are summarised and the suitability of the ISO/TAG4/WG 3 guide is discussed.

File size: 362.74 KB Download

When do we need calibration of equipment used in testing laboratories? (NT TR 226)

NT TR 226

  • One of the most important elements in a testing laboratory quality system is a practical, well-functioning equipment management system.

File size: 544.27 KB Download

Indoor climate problems - Investigation and remedial measures (NT TR 204)

NT TR 204

  • Problems due to heat, cold and draughts, bad air or stuffy air in dwellings and places of work have been, and continue to be, of frequent occurrence.

File size: 1.20 MB Download

Recommended methods for on site evaluation of the magnetization in MPI (NT TR 171)

NT TR 171

  • Requirements for sufficient magnetizing force in MPI (magnetic particle inspection) vary considerably. When using current magnetization, the verification is fairly straightforward but when using yokes and coils, strayfields interfere with the results. The report gives recommendation for measuring the level of magnetization for different types of methods.

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