2026.09.21Documents

Medical tubing documents — TDS, MSDS, biocompatibility: what to ask for and when

“We need the MSDS and a biocompatibility report” — half of the inquiries from Korean manufacturers contain that sentence. Documents do not all arrive at once; they differ by stage. Here is what to request when, so the schedule does not slip.

ISO class 7 cleanroom production
Linstant ISO 13485 · ISO class 7 cleanroom
StageDocumentsWhat it coversTurnaround
Quotation · sampleTDSMaterial grade, tensile · durometer · service temperature, dimensional toleranceWith the quotation
Quotation · sampleMSDS(SDS)Raw-material safety data; confirm colourants and radiopaque fillers are coveredWith the quotation
Before design freezeISO 10993 biocompatibilityCytotoxicity, sensitisation, irritation etc. at resin or tubing level; differs by grade, lot and colourAfter confirmation with the factory
Before design freezeProcess · inspection dataDimensional inspection report, bond, tensile and kink testsOn request
Registration · productionRaw-material evidence · change controlResin maker certificate, ISO 13485 certificate, change-notification procedureOn request

Why biocompatibility data comes later

ISO 10993 data differs by material grade and sometimes by colour (colourant). Even for PEEK, natural and black have different files, and for parts that stay on the device, such as PET heat shrink, the device maker often runs its own tests. The safe order is to confirm at quotation whether data exists, and receive the actual documents before design freeze.

How to ask

  • Give item, size and colour together. “PEEK tubing black, ID 1.3 mm, ISO 10993-5 · -10 data yes/no” is faster than “PEEK tubing biocomp”.
  • Say whether you only need documents for registration and run tests yourself. If you run flexibility, sterilisation and biocompatibility tests in-house, only raw-material evidence is needed.
  • If radiopaque fillers (BaSO₄ · Bi₂O₃ etc.) or colourants are used, confirm they are covered in the MSDS.
  • Change control: put a notification procedure in the contract for changes in resin grade, plant or process after production starts.
Linstant produces in an ISO 13485:2016 certified plant (ISO class 7 · 8 cleanrooms). TDS · MSDS are sent with the quotation; biocompatibility data is confirmed per item and grade.

More technical notes

More Notes
All technical notes →
2026.09.15A guide to CNC machining medical PEEK2026.09.09Catheter design guide — material, layers, tolerance2026.09.02PEEK biocompatibility — what an engineer should know2026.08.20Medical PI tubing — seven things an engineer should check
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Dimensions, material, application. Those three are enough to start. A drawing makes it faster.

grit@octud.com010-3338-2976
01Dimensions — OD / ID / wall, or Fr
02Material · whether a grade is specified · tolerance
03Application · secondary processing · expected volume
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