A cross-reference finder can help a reader locate a candidate for further comparison. It should be used as the start of a document review, especially when a project specification names a particular expansion joint model. A search result, family name or dimension is not evidence that two complete systems meet the same project requirements.
Start with an exact source reference
Record the manufacturer and full model designation from the specification or current document. Include the document date and relevant drawing or schedule reference. If the reference is incomplete, preserve it as incomplete rather than selecting the closest-looking name. A search using a partial family name may narrow the enquiry without identifying the intended assembly.
Treat a result as a candidate
Record the finder result and the date you accessed it, then request current documents for that exact proposed system. Do not label a candidate approved equivalent before the project review. The finder is part of Dseal's own information portal; it does not represent independent approval by another manufacturer or by a testing body.
Compare the actual assembly and conditions
Place the candidate documents beside the specified requirements. Identify the movement requirement, opening dimensions, installation substrate, traffic or loading conditions and relevant interfaces as defined by the project team. Record which items are supported, which differ and which remain unknown. Avoid inferring assembly performance from a material property or from an isolated matching dimension.
Ask for evidence tied to the claim
When a requirement calls for a test, rating or certificate, ask for the actual document and check the named assembly and scope. A standard number on a page does not establish tested compliance. If a document is missing or applies to another variant, record the gap and refer it to the responsible reviewer. Do not fill a comparison matrix with assumptions simply to make every cell look complete.
Keep the approval decision traceable
Retain the source reference, candidate, comparison documents, unresolved differences and reviewer decision together. Use the comparison matrix as a working record with revision dates. An accepted substitution is a project decision made through the applicable review process; a finder result cannot make it on its own. Request a documented response to material differences before changing the specified item.
Working record
Example entries illustrate the record format and are not a documented project or an approved technical specification.
| Stage | Useful output | Limit |
|---|---|---|
| Finder search | Candidate and accessed date | No approval established |
| Document comparison | Supported values and explicit gaps | Missing evidence remains unknown |
| Project review | Recorded decision and conditions | Applies to stated project scope |
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