This NORDTEST method describes how oxide thickness measurements and/or metallographic investigations (changes in carbide distribution) can be used to assess the temperature history of superheater and reheater tubes.
The aim of the test method is to provide an assessment of the corrosivity on carbon steel of combustion by-products from power and district heating plants before and after accelerated ageing at 40 °C in a measuring cell made for the purpose.
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”.