Type K thermocouples, which consist of a chromel leg and an alumel leg, are widely used in industry for measuring process temperatures up to 1200°C. They are however, susceptible to preferential oxidation or “green rot” as it also more commonly known.
Canadian Registration Numbers (CRNs) identify unique pressure equipment designs for use in Canada. Each design concept has a unique number. One Canadian Registration Number can represent millions of individual items, each with a different serial number, that all conform to the CRN design.