What does the Single sterile barrier system symbol look like?

A single outlined horizontal oval. It is also called “SBS”, “Single sterile barrier” and “Sterile barrier system”.

Which standard defines the Single sterile barrier system symbol?

It is listed as ISO 15223-1-5.2.11.

Single sterile barrier system symbol: a single outlined horizontal oval — ISO 15223-1-5.2.11

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Medical device label symbols Medical device & pharmacy labels

Single sterile barrier system

A single outlined horizontal oval. · also called “SBS”, “Single sterile barrier”, “Sterile barrier system”

What the Single sterile barrier system symbol means

One sterile barrier layer

The device is packed in a single sterile barrier system, one layer of packaging that keeps it sterile until opened. A double ring means two such layers.

Source · Official website Medical device manufacturer's digital symbols glossary · checked Nov 11, 2026

Where it appears

Medical device label

ISO 15223-1
—This meaning

Questions about the Single sterile barrier system symbol

What does the Single sterile barrier system symbol mean?: The device is packed in a single sterile barrier system, one layer of packaging that keeps it sterile until opened. A double ring means two such layers.
What does the Single sterile barrier system symbol look like?: A single outlined horizontal oval. It is also called “SBS”, “Single sterile barrier” and “Sterile barrier system”.
Which standard defines the Single sterile barrier system symbol?: It is listed as ISO 15223-1-5.2.11.

Checked against the source · Nov 11, 2026 · How we verify

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