1. Home
  2. Measurements - Analysis
  3. Laboratory quality and safety procedures
  4. Sum of measurement values

  5. Conclusion

Article | REF: P263 V1

Sum of measurement values

Authors: Marielle CROZET, Cédric RIVIER, Stéphane PUYDARRIEUX, Alain VIVIER, Vincent BRUEL, Guillaume MANIFICAT, Marcel MOKILI, Bernard THAUREL

Publication date: June 10, 2015, Review date: October 7, 2020 | Lire en français

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Automatically translated using artificial intelligence technology (Note that only the original version is binding) > find out more.

    A  |  A

    6. Conclusion

    Most aggregation methods currently used by laboratories use substitution or censoring methods for non-significant or negative values, and therefore generate biases that can be very significant.

    The methodology proposed in this article overcomes these biases. It is based on the following two fundamental rules:

    • the accumulation of measurement values must be established on the basis of all individual measurement values, including non-significant values, such as negative values. These values are expressed in units of the measurand, and their associated uncertainty takes into account all sources of uncertainty. Modifying these values, on the pretext that they are insignificant, can only introduce bias into the cumulative result, and distort the assessment of its uncertainty;

    • in cumulative...

    You do not have access to this resource.

    Exclusive to subscribers. 97% yet to be discovered!

    You do not have access to this resource.
    Click here to request your free trial access!

    Already subscribed? Log in!

    The Ultimate Scientific and Technical Reference

    A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
    + More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
    From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

    This article is included in

    Laboratory quality and safety procedures

    This offer includes:

    Knowledge Base

    Updated and enriched with articles validated by our scientific committees

    Services

    A set of exclusive tools to complement the resources

    Practical Path

    Operational and didactic, to guarantee the acquisition of transversal skills

    Doc & Quiz

    Interactive articles with quizzes, for constructive reading

    Subscribe now!

    Ongoing reading
    Conclusion
    Outline