What does the Double sterile barrier system symbol look like?

Two concentric outlined horizontal ovals, one inside the other. It is also called “Double SBS”, “Double sterile barrier” and “Two sterile barriers”.

Which standard defines the Double sterile barrier system symbol?

It is listed as ISO 15223-1-5.2.12 and ISO 7000-3704.

Double sterile barrier system symbol: two concentric outlined horizontal ovals, one inside the other — ISO 15223-1-5.2.12, ISO 7000-3704

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Double sterile barrier system

Two concentric outlined horizontal ovals, one inside the other. · also called “Double SBS”, “Double sterile barrier”, “Two sterile barriers”

What the Double sterile barrier system symbol means

Two sterile barrier layers

The device is packed in two sterile barrier systems, one inside the other, each keeping it sterile until opened. A single oval means only one such layer.

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 Double sterile barrier system symbol

What does the Double sterile barrier system symbol mean?: The device is packed in two sterile barrier systems, one inside the other, each keeping it sterile until opened. A single oval means only one such layer.
What does the Double sterile barrier system symbol look like?: Two concentric outlined horizontal ovals, one inside the other. It is also called “Double SBS”, “Double sterile barrier” and “Two sterile barriers”.
Which standard defines the Double sterile barrier system symbol?: It is listed as ISO 15223-1-5.2.12 and ISO 7000-3704.

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

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