CEN/WS ‘The Standardisation of the Impression Creep Test’ 

Small sample testing in general, and impression creep in particular, offers the opportunity for owner/operators of power generation equipment to perform non-invasive testing of their high value equipment to determine risk or risk-ranking as they look to prioritize maintenance activities. Small sample concepts such as impression creep afford the opportunity to quantify high temperature creep behaviour relevant to high energy piping; high temperature valves; high pressure steam turbines; gas compressor, combustor, and turbine; and other critical components. However, in order to use this data in a consistent manner and have confidence in the determination of risk – either through comparative ranking or through component-specific life prediction, this test method needs to be internationally recognized and demonstrated to be consistent.

The primary objective of the WS is to agree a common test methodology and data interpretation for the impression creep test, to be applied by the laboratories using this specialised technique, in preparation for a future standard.

The WS will produce the CWA 'Standardisation of the Impression Creep Test' with the scope of establishing a common test methodology and data interpretation for the impression creep test amongst laboratories using, or planning to use, this specialised technique.

The secretariat is held by BSI, the UK Standardization Body.

The kick-off meeting will be held on 20 April 2021 by teleconference. People can register by sending an email to the WS secretary, Ms. Katherine IMBERT (Katherine.Imbert@bsigroup.com).

All interested parties are invited to submit comments on the Draft Project Plan through using the commenting form and send it to Ms. Katherine IMBERT, the WS secretary.