File 02: Lot, batch and serial traceability
Choosing the unit of trace: product type, lot, batch, serial item, or logistics unit, and what each level can and cannot prove.
The file guide
Working guides on this file
Lot, batch and serial traceabilityBatch identity and batch recordsA batch record ties inputs, process settings, and outputs to one production run. This guide sets out what a batch record must contain to support a backward trac.GuideLot, batch and serial traceabilityFrom product code to traced unitA product code identifies a type. This guide works through the step from type level identity to lot, batch, or serial level identity, and what changes in the re.GuideLot, batch and serial traceabilityIdentifier formats and uniquenessAn identifier that repeats across suppliers, or that changes format mid-chain, will break a trace. This guide covers format, uniqueness, and the discipline of i.GuideLot, batch and serial traceabilityIdentity carriers: barcodes and RFIDA carrier holds an identifier; it is not the identifier itself. This guide compares barcodes, two dimensional codes, and RFID as carriers, and the record each o.GuideLot, batch and serial traceabilityIdentity errors and how to catch themMislabelled lots, duplicated serials, and wrong case contents are identity errors with traceability consequences. This guide covers checks that catch them early.GuideLot, batch and serial traceabilityLogistics units and shipping identityCases, pallets and containers carry their own identifiers, and those identifiers must link to the contents inside. This guide covers logistics units and their c.GuideLot, batch and serial traceabilityLot identity in productionA lot is a quantity produced or received under similar conditions. This guide covers how lots are defined, numbered, and kept separate when they are used togeth.GuideLot, batch and serial traceabilityLot numbering schemes that survive growthA numbering scheme that works for one site can fail when a second site is added. This guide sets out schemes that stay unique as a chain grows..GuideLot, batch and serial traceabilityMixed lots and comminglingWhen lots are mixed, the trace changes character. This guide explains commingling, mass balance, and the limits of a claim about a mixed quantity..GuideLot, batch and serial traceabilityRework and its effect on identityReworked material can break a simple input to output story. This guide covers how rework is recorded so the genealogy stays honest..GuideLot, batch and serial traceabilitySerial identity for single itemsSerialisation identifies one item at a time. This guide covers when that level is justified, what it costs in data handling, and how serial records link to batc.GuideLot, batch and serial traceabilitySplit and merge events in identitySplitting a lot or merging lots creates new identities. This guide covers how those events are recorded so no quantity appears twice or disappears..Guide