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OT Linen Sample Approval: Trialling Gowns and Drapes Before Bulk

A signed sample is the standard every bulk delivery is measured against. How to check theatre gowns, drapes and covers against your specification, run laundering and wear trials, and sign off properly.

By MISHAREN · · 6 min read

Before you order theatre gowns and drapes in bulk, approve a sample of every item: check it against your specification, put it through your own laundry and reprocessing route, let the people who will use it handle it in real conditions, and sign it off in writing. The signed sample then becomes the standard that every bulk delivery and future reorder is measured against. It is the cheapest insurance you can buy on a theatre linen order.

Why sampling matters for theatre textiles

Theatre linen is used by people under pressure, processed by several departments and expected to last many cycles. A problem that seems minor on a fitting-room table can become serious in practice:

  • A fenestration that sits a few centimetres off-centre on the patient.
  • A gown cuff that rides up under gloves.
  • A drape that does not fold to the size your CSSD trays or packs need.
  • A woven label that frays after a dozen washes.
  • A colour that shifts noticeably after laundering.

Finding these on two or three samples costs very little. Finding them on several hundred delivered items costs a great deal, and the shipping time involved in remaking goods made outside the UAE adds weeks.

What to sample

Ask for at least one sample of each distinct item and size, made in the actual fabric, colour, construction and marking proposed for bulk. A typical set:

Item Minimum sample What to focus on
Surgeon gown One per size, or the most common sizes plus the largest and smallest Fit, sleeve and cuff, back overlap, closures, neckline
Plain drape One per size Dimensions, hems, fold behaviour
Fenestrated drape One per design Fenestration size and position against the drawing
Trolley cover One per trolley type Fit on the actual trolley
Mayo stand cover One Fit on your Mayo stands
Instrument wrap One per size Dimensions, handling, CSSD acceptance

If budget allows, ask for two of each: one to test to destruction through laundering, one to keep untouched as the reference.

Step by step: a practical sample approval process

  1. Check against the specification. Measure every dimension with a tape on a flat table. Compare fabric, colour, closures, seams and marking with the written specification. Note any variance.
  2. Fit-test gowns on real people. Ask several members of the theatre team, of different builds, to put gowns on, raise their arms, reach forward and move as they would in a case.
  3. Test covers on your equipment. Fit trolley and Mayo stand covers on the actual equipment used in your theatres.
  4. Check drapes on a table and, where appropriate, in a mock set-up. The theatre team can confirm whether the drape size and fenestration position suit the procedure.
  5. Put samples through your laundry. Run them through the real wash process several times. Check shrinkage, colour, marking and seams after each batch of cycles.
  6. Involve CSSD. Ask them to fold, pack and, if they wish, process samples through their normal route, and to confirm the items work with their methods. Decisions on sterilisation suitability belong to your CSSD and infection-control teams.
  7. Collect feedback in writing. A short form with specific questions works better than general opinions.
  8. Agree changes with the supplier. If anything needs to change, ask for a revised sample rather than approving with verbal changes.
  9. Sign off. Record the approval with dates, names and photos, and store the sealed reference sample.

Running a wear trial

For surgeon gowns especially, a short wear trial in live lists is more revealing than any fitting. Comfort problems often show only in long cases. Our post on surgeon gown comfort and heat lists what to watch for.

A simple trial:

  • Choose a small group of surgeons and scrub staff across different specialties.
  • Use the sample gowns for a set period or number of cases.
  • Ask the same questions of everyone: fit, comfort, sleeve and cuff, closures, any irritation.
  • Combine feedback with laundry and CSSD findings before deciding.

Laundering trial: what to measure

Even a short laundering trial tells you a lot. Before the first wash, measure and record key dimensions and photograph the item. After a set number of cycles, measure again.

  • Shrinkage: compare length and width before and after. A drape that shrinks may no longer cover what it needs to, and fenestration positions may move.
  • Colour: compare against an unwashed sample in good light.
  • Seams and hems: look for puckering, open stitches or fraying.
  • Marking: check labels and printed marks are still legible and firmly attached.
  • Handle: is the fabric noticeably stiffer or rougher?

If shrinkage is noticeable, discuss with the supplier whether the bulk can be cut to allow for it. Record the result so the same allowance applies to every reorder.

Documents to collect at the sample stage

Sampling is also the time to complete the paperwork:

  • Fabric details: fibre content, weight and colour reference.
  • Any test documentation the supplier can provide, and a clear statement of what the fabric is and is not tested or certified for. Our post on surgical gown barrier standards explains what to ask.
  • Care instructions.
  • Marking details: method, content and position.
  • The confirmed lead time for bulk, including shipping.

Common reasons to reject or revise a sample

Most revisions fall into a few predictable groups, so it helps to look for them deliberately:

  • Dimensions outside the tolerance in your specification, before or after washing.
  • Fenestration position or size that does not match the drawing.
  • Gown sleeves too long or short for most of the team, or a back overlap that gapes when the wearer bends.
  • Closures that are hard to fasten with gloved hands, or ties that are too short.
  • Labels placed where CSSD cannot see them once the item is folded.
  • Colour that does not match the existing stock it will be used alongside.

None of these is unusual, and a good supplier will expect to revise a sample once or twice before bulk.

After approval: using the sample

The approved sample is only useful if people use it.

  • Keep the sealed reference sample in a known place, with a copy of the specification and the sign-off record.
  • When the bulk order arrives, compare a random selection of items against the reference: dimensions, colour, construction and marking.
  • Keep the same reference for reorders. MISHAREN keeps the approved specification on record so repeat orders are made to the same standard.

If you are writing the specification that sampling checks against, see our guide to the OT gown and drape tender specification.

Sample approval checklist

  • One sample per item and size, in bulk fabric and colour
  • Dimensions measured and recorded
  • Gowns fit-tested on several people
  • Covers tested on actual trolleys and Mayo stands
  • Laundering trial with before-and-after measurements
  • CSSD and infection-control input recorded
  • Written feedback from users
  • Revised sample requested for any change
  • Signed approval with photos and a sealed reference sample

Next step

To request samples of reusable surgeon gowns, drapes, covers or wrapping cloths made to your dimensions, see the OT gowns and drapes page or get in touch through contact.

FAQs 5 questions

Questions about this topic.

How many samples should we ask for?

At least one of each item and size in the bulk fabric and colour. Two of each is better: one to wash-test and one to keep as an untouched reference.

How many wash cycles should a laundering trial include?

Enough to reveal shrinkage, colour change and marking wear. Agree a number with your laundry and measure before and after.

Who needs to approve OT linen samples?

Typically the theatre team, CSSD, infection control, the laundry and procurement. Decisions on sterilisation suitability belong to CSSD and infection control.

What if the sample needs changes?

Ask for a revised sample rather than approving with verbal changes, so the reference sample matches what will be made in bulk.

What happens to the approved sample?

Keep it sealed with the specification and sign-off record, and use it to check bulk deliveries and future reorders.

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