Obtaining Third-party CRNS for N285.0 Class 6 Components

Abstract

CSA N2825.0 and CSA B51 require that components containing pressure exceeding 15 psig must have a valid Canadian Registration Number (CRN). However, many manufacturers of small pressure-retaining components refuse or are unable to obtain valid CRNs for their equipment. This creates a problem for users who require these components and are thus unable to meet Code requirements. It’s often possible for an accredited third party like Nuclear Logistics to obtain a CRN for such components. In this case the third party must assume all product liability, and must verify all aspects of the component that are pertinent to the design and pressure-boundary materials of construction. This paper will discuss the process by which NLI conducts such work to meet client and jurisdictional requirements, by highlighting case studies from real projects, and the key considerations that must be taken into account. This paper is not a discussion of jurisdictional requirements, but rather a description of NLI’s approach to solving this problem.