Lab094-429 roll format actual photo (page image, visually verified 2026-09-21)
T429 matte white PET polyester · Population cohort specimen identification
Lab094-429 · 25x10mm cryogenic refrigerated polyester label
A narrow horizontal strip 25 mm long and 10 mm high, fitting one line of specimen ID or a single short barcode, with overlap allowance when applied to the cryovial surface; remains legible through rewarming and autoclaving stages.
T429 PET polyester25x10mm-196 °C LN₂100 °C/121 °C rewarming & autoclaving500-1000 labels/roll
Product Overview
Lab094-429 cryogenic refrigerated polyester label uses T429 matte white PET polyester as face stock and is a laboratory label for -196 °C LN₂ to 121 °C autoclaving environments, labeling cryovial and test tube surfaces as well as low-temperature packaging.Nominal size 25x10mm, aspect ratio 2.5:1: the 10 mm narrow height adheres to the cryovial body without covering the rest of the tube wall, while the 25 mm length is sufficient for one 8-12 digit specimen ID or a single short barcode.
The application scope stated on this page is the cryogenic refrigerated scenario of the National Human Biomonitoring Program. Specimens in population cohort biomonitoring programs are characterized by large batch volumes, long follow-up cycles, and IDs that must remain unique and legible across years. This places three key demands on labels: print must not detach after cryogenic storage; the same ID system must remain scannable years later; and per-tube information should be limited to essential fields without occupying excessive tube surface. The 25x10mm single-line format is a narrow specification designed around this approach.
Face stock and temperature resistance follow the T429 row of the official material guide: matte white PET polyester film, officially described as "the ideal choice for labeling frozen surfaces," passing all four tiers — LN₂ -196 °C, freezer -80 °C, hot water 100 °C, and autoclaving 121 °C — with official applications checked as cryovials/test tubes and packaging labeling. Four-tier coverage means a single label can follow a specimen through the complete pre-processing chain of cryogenic storage, water bath rewarming, and autoclave inactivation without replacement or re-labeling.
Key Features
Film
PET polyester matte white face stock
T429 matte white PET polyester film has a smooth surface; thermal-transfer small text and short barcodes have crisp edges, suitable for small-font ID layouts.
Temp
All four environment tiers passed
The T429 row of the official guide covers -196 °C LN₂, -80 °C freezer, 100 °C hot water, and 121 °C autoclaving.
Size
25x10mm narrow horizontal strip, single-line format
The 10 mm narrow height adheres to the tube body without crowding other areas; the 25 mm length accommodates one complete ID or a single short barcode.
Spec
Metric round values, no conversion needed
25x10mm is a metric round-value specification, directly matching the metric conventions commonly used in domestic project forms and labeling templates, with no imperial conversion.
Specifications
| Page Item No. | Lab094-429 |
| Nominal size | 25x10mm |
| Face stock | T429 matte white PET polyester |
| Temperature resistance | -196 °C LN₂ / -80 °C freezer / 100 °C hot water / 121 °C autoclaving |
| Official applications | Cryovials / test tubes · packaging labeling |
| Corners | Rounded / square corners available |
| Packaging | 500-1000 labels/roll |
| Matching ribbon | BRL-80-BK / BRL-110-BK laboratory cryogenic ribbon |
| Compatible printers | M611 / EOS2/3 / MACH4S laboratory label printers |
Roll format
Typical Applications
Population cohort specimen accession numbering
One 25x10mm label carries one unique specimen ID; cryobox compartments are arranged in ID order, and batch accession uses continuous-feed full-roll output.
Long-term cryogenic archive retrieval
Specimens stored long-term in -80 °C freezers or LN₂ dewars remain scannable after repeated handling and freeze–thaw cycles, supporting cross-year retrospective retrieval.
Rewarming and pre-processing stages
Specimens move from cryogenic storage to 100 °C hot water rewarming and then 121 °C autoclave inactivation; a single label follows the entire process without failing at process transitions.
Cryogenic storage and transport packaging labeling
Official applications include packaging labeling; transport boxes and outer layers of cryobags can be labeled under the same ID system, with tube labels inside matching box labels outside one-to-one.
Temperature Flow & Labeling Notes
1
Defrost and dry the tube surface
After removing the specimen, defrost and wipe the tube surface dry; cryogenic adhesive achieves more stable initial adhesion on a dry, clean surface, avoiding a condensed water film interlayer.
2
3 mm end overlap
Official rules require at least 3 mm overlap at the ends when T429 is applied to a cryovial surface; the 25 mm length must reserve this overlap when wrapping around the tube body.
3
Check the seam before rewarming
Before entering the 100 °C water bath for rewarming, confirm the end overlap area is fully pressed; after the water bath stage, verify ID legibility per laboratory procedures.
4
Finalize the ID system once
Lock the ID digit count and layout template before batch output; different batches of the same project should use the same template to facilitate cross-year retrieval.
FAQ
Q: What is the difference between 25x10mm and the 25.4x9.53mm slim strip version?
A: The two are close in format but use different conventions: 25x10mm is a metric round-value specification, with nominal dimensions directly matching domestic metric labeling templates; 25.4x9.53mm corresponds to imperial 1x0.375 in, which laboratories accustomed to the imperial system find more convenient. Both use the same T429 face stock and identical temperature tiers; choose according to your existing template convention.
Q: Will the ID remain legible after autoclaving?
A: The T429 row of the official guide covers both 121 °C autoclaving and 100 °C hot water; when printed with BRL-80-BK or BRL-110-BK laboratory cryogenic ribbon, the transfer layer can follow the specimen through the full freezing, rewarming, and sterilization process. Actual legibility depends on printer resolution, print darkness, and the sterilization program; small-batch verification is recommended first.
Q: Do narrow labels tend to lift at the edges?
A: T429 is PET polyester film; official rules require at least 3 mm end overlap when applied to a cryovial surface. Reserving sufficient overlap and pressing the seam firmly per this requirement reduces the likelihood of edge lifting after freeze–thaw cycles. If the tube diameter is very small and stronger conformability is needed, switch to the T629 nylon cloth version.
Q: Can this be applied to microscope slides?
A: The application checkboxes for the T429 row of the official material guide are cryovials/test tubes and packaging labeling; microscope slides are not listed. For slide archiving, the T629 nylon cloth all-scenario version is recommended.
Selection & Usage Guide
Same-family selection reference: for a wider information area fitting both ID and barcode, switch to the 25x17mm three-column die-cut version; for full coverage of small-diameter square formats, switch to the 20x15mm two-column die-cut version; if only routine freezing above -40 °C is required and cost is the priority, switch to T419 gloss white PET or T329 matte white PP; for all-scenario general use and slide archiving, switch to the T629 nylon cloth version; for pathology xylene resistance and H&E processes, switch to T424 with BRS series ribbon. For more materials and specific applications, please contact the product manager for selection.
- Before batch output, test-apply one label to the target tube diameter to confirm that the end overlap after wrapping the 25 mm length meets the official 3 mm requirement.
- For ID layout, standardize the digit count and quiet zone distance; use the same template across batches of the same project for consistent scanning during long-term retrieval.
- After printing and labeling, let labels rest per laboratory procedures before entering cryogenic environments; applying immediately before use is also acceptable, with adhesion performance subject to actual testing.
Note: The temperature tiers, face stock, and official application scope on this page are subject to the T429 row of the official material guide and the product specifications section; page images contain promotional banners and site name watermarks, and actual delivered specifications are subject to order confirmation. For operations involving LN₂ and autoclaving, follow laboratory biosafety regulations and wear appropriate protective equipment.
Need a bulk quotation for Lab094-429 or a custom size other than 25x10mm?
Custom specifications and die-cutting methods supported; samples and selection advice available.
Sales Hotline 18015583218
