Items tagged with QUALITY ASSURANCE Files

File size: 3.71 MB Download

Uncertainty from sampling - A Nordtest Handbook (NT TR 604 ed 2)

NT TR 604 ed2

  • This handbook provides practical guidance on sampling uncertainty estimation in the Nordtest TR handbook format. The handbook is an extract of, and based on the principles, methods and text of the Eurachem Guide Estimation of measurement uncertainty arising from sampling. The Eurachem guide is more extensive and provides details on theory and additional examples. In 2019 Eurachem published a revised edition and therefore also the Nordtest handbook is revised.

    The overall purpose of this handbook is to provide a set of tools for calculation and control of the sampling uncertainty of the sampling procedure. It is the intention to make these tools and the understanding of their use available outside the world of analytical chemistry, although the basic principles applied originate from analytical chemistry. We hope that this is achieved but if not, please recall that statistics generally seem to be more complicated than it actually is…

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: 2.02 MB Download

Kvalitetshandbok för energitorv: Bränsleklassificering och kvalitetssäkring, provtagning och bestämning av egenskaperna (NT ENVIR 009)


  • Denna kvalitetshandbok fastställer de förfaranden som skall användas för att bestämma kvaliteten på energitorv som är föremål för handel samt för att säkerställa kvaliteten och för kvalitetsstyrning.

File size: 294.85 KB Download

Quality guidelines for fuel peat: Fuel classification and quality assurance, sampling and analysis of properties (NT ENVIR 009)


  • The purpose of this quality guideline is to define the procedures for specification of traded fuel peat, as well as quality assurance and control.


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”.