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Laboratory labelling: how can samples, containers and areas be identified durably?

In a laboratory, labelling isn’t a trivial detail: it underpins traceability, safety and compliance with GLP/GMP and GHS/CLP. Labels, printers, markers and adhesive tapes ensure clear identification from sampling through to archiving, even in harsh conditions: cryogenic (-196 °C), autoclave (+121 °C), solvents, humidity. 1D/2D barcodes, numbering, colour coding and pictograms cut errors and streamline your workflows, from the LIMS to the bench and the field. Dutscher selects durable, robust and easy to integrate solutions to secure every step of your analyses.

What are the different laboratory labelling systems?

Laboratory labels are available in polyester, polypropylene, vinyl or paper, with permanent, repositionable or cryogenic acrylic adhesives. Formats dedicated to cryotubes, vials, slides and microplates; solvent-resistant versions (xylene, ethanol, DMSO) and those that withstand the autoclave cycle. Some models include GHS/CLP pictograms and write-on areas.

Benchtop or portable printers cover thermal transfer (maximum durability with wax, wax–resin or resin ribbons) and direct thermal (short-term use). Resolutions of 300–600 dpi; printing of 1D/2D codes (DataMatrix, QR), serials and time stamps. Design software, databases and LIMS integration streamline standardisation. Some ranges offer RFID for contactless tracking.

Fine/ultra-fine tip markers deliver permanent, low-odour ink that resists alcohol and xylene (model-dependent), including on cold or damp surfaces. Low-particle cleanroom versions available.

Laboratory tapes are used for colour coding and marking glassware. Cryo, high-temperature and solvent-resistant options, with removable, no-residue or tamper-evident versions.

Selection criteria: substrate (glass, PP/PE, steel), temperature range (?196 to +121 °C), exposure (solvents, UV, humidity), expected service life, sterilisation compatibility, readability (1D/2D).

Comparison table below:
TypePrincipleApplications
LabelsSynthetic/paper facestock + suitable adhesive (cryo, high temp)Samples, vials, slides, GHS/CLP
PrintersThermal transfer or direct thermal, 300–600 dpi1D/2D barcodes, serials, LIMS integration
Markers & tapesPermanent ink + colour-coding tapesQuick labelling, identification, special surfaces

In which areas is laboratory labelling used?

• Life sciences: biobanks, cell banks, cryopreservation, end-to-end sample tracking from collection to the DNA bank.
• Pharmaceuticals & bioprocessing: batches, stability, GMP traceability, labelling of culture media and sterile consumables.
• Clinical & diagnostics: positive patient identification (PPID), 2D barcodes on tubes, ISO 15189 compliance.
• Food & beverage: hygiene monitoring, use-by/best-before dates, HACCP supply-chain traceability.
• Environmental: field sampling (water/soil), weather-resistant bottles.
• Chemistry & materials: solvents, acids/bases, robust GHS/CLP labelling.
• Cosmetics: R&D, stability, pilot batches.
Across all sectors, LIMS integration and 1D/2D codes reduce errors and speed up the audit trail.

Available labelling solutions

Frequently asked questions about laboratory labelling

Which label for cryogenics?
Choose a synthetic facestock with a cryogenic adhesive, printed by thermal transfer (resin ribbon). It stays legible from -196 °C through thawing, without lifting or peeling.

Thermal transfer or direct thermal?
Thermal transfer offers the greatest durability (solvents, heat). Direct thermal suits short-term use (cold room, internal logistics).

Do markers withstand alcohol/xylene?
Yes, with solvent-resistant permanent ink. For histology (xylene), favour fine tips and inks specified as “xylene-resistant”.

Can you label an already frozen tube?
Use “frost-friendly” labels designed for frosted surfaces. Press firmly; the final bond strengthens with slight warming.

How to avoid adhesive residue?
Select removable “low-tack” versions or glass-specific adhesives. A compatible remover can help without damaging the substrate.

What resolution for 2D codes?
300 dpi is often sufficient; 600 dpi improves readability on very small labels (microtubes, slides) and dense DataMatrix codes.

Are ribbons suitable for autoclaving?
Choose high-temperature ribbons and labels certified for +121 °C. Check performance after multiple cycles and for any signs of delamination.