From risk to requirements: a round robin test

Timo Malm, Tor Stålhane, Charlotte de Bésche, Outi Venho-Ahonen, Marita Hietikko

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Risks are categorized, e.g. to prioritize them and to select safety systems and devices with adequate safety properties. A wrong functional safety level estimation causes either exaggerated costs or an increase in the risk of accidents. The risk assessment for estimating functional safety requirements was researched and the results are presented at the paper. A round robin test was conducted to compare and check how well the methods matched each other. The assessors estimated the parameters of the risks and assigned the required SIL (Safety Integrity Level according to IEC 62061) and PL (Performance Level according to ISO 13849-1). The study shows that in most cases the results correspond to each other, though there are some exceptions. The IEC 62061 method rarely results in SIL 1 but instead in SIL 0 or SIL 2.
    Original languageEnglish
    Title of host publication8th International Conference Safety of Industrial Automated Systems
    Subtitle of host publicationSIAS 2015
    Pages99-107
    ISBN (Electronic)987-3-86423-163-6
    Publication statusPublished - 2015
    MoE publication typeA4 Article in a conference publication
    Event8th International Conference Safety of Industrial Automated Systems, SIAS 2015 - Königswinter, Germany
    Duration: 18 Nov 201520 Nov 2015
    Conference number: 8

    Conference

    Conference8th International Conference Safety of Industrial Automated Systems, SIAS 2015
    Abbreviated titleSIAS 2015
    CountryGermany
    CityKönigswinter
    Period18/11/1520/11/15

      Fingerprint

    Keywords

    • functional safety
    • risk assessment
    • safety requirements
    • machinery

    Cite this

    Malm, T., Stålhane, T., de Bésche, C., Venho-Ahonen, O., & Hietikko, M. (2015). From risk to requirements: a round robin test. In 8th International Conference Safety of Industrial Automated Systems: SIAS 2015 (pp. 99-107) http://www.dguv.de/medien/ifa/en/vera/SIAS_2015_proceedings.pdf