Supplier lot or batch
A lot or batch identifier is used by a supplier or manufacturer to identify a grouping of material. Record the identifier shown on the supplied label, packaging, or applicable supplier record rather than assuming an older lot applies.
An identifier is useful when it can be connected to the relevant material and records. A lot number by itself does not establish an analytical result or the scope of a report.
Laboratory sample identifier
A testing laboratory may assign its own identifier to the sample it receives. That identifier can differ from the supplier's lot or catalog code. Record both when they are available.
If the relationship is not documented, ask the supplier to explain which submitted sample corresponds to the supplied lot. Keep that explanation with the report reference instead of silently treating the identifiers as interchangeable.
Report number and date
A report number identifies a document; the report date records when that document was issued. These fields help you locate the same record later and distinguish it from a revised or different report.
The report date should not be assumed to be a manufacturing date or an expiry date. Use each date for the purpose stated in the actual document or label.
Maintain a clear record
Keep material name, nominal size, supplier lot, sample identifier, laboratory name, report number, and report date together. Include the original document or a stable reference and any relevant supplier clarification.
For a blend or a product with several sizes, keep the selected designation in the same record. This makes it easier to distinguish an applicable report from a similar record for another material or option.
When an identifier cannot be found
Search the CBS Testing Library with the material or batch information available. If the record is missing, contact support with the full material name, nominal size, and identifier you are trying to match.
A pending or missing match should stay unresolved until an applicable record or clarification is provided. Do not replace it with a convenient report from an earlier lot without an established relationship.
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