ECCC Recommendations - Volume 3 Part III gives:
1) Recommendations for the execution of conventional creep rupture tests suitable for the typical boundary conditions in which Post Exposed (ex-service) material is generally tested.
An overview of the needs for the recommendations introduces a series of tables, containing the minimum information required both for existing and new creep rupture test data. These tables also include the lowest common testing practice details and the recommended minimum requirements for future creep rupture testing of PE materials. When necessary, recommendations are then discussed separately. The recommendations for minimum material pedigree and testing practice information requirements, as defined by the PEDS subgroup of ECCC-WG1, are based on the results of the survey presented in Appendix
1. The tables of Appendix 1 summarise the responses to a Questionnaire circulated to European organisations involved in the generation and use of post exposed material creep data. An appendix 4 (included since issue 4) recommends the decision making sequence to establish a typical suitable PE-material testing program, as it may be r4equested during a residual life assessment campaign.
2) An overview on PE material specific testing techniques as currently proposed (conventional small scale creep testing, small punch testing, impression creep testing), including the actual status on testing practice harmonisation, comparability of results, applicability of their results for design or design verification purposes, time and cost benefits.
