What does the General warning sign symbol look like?

Yellow triangle with a black border and a black exclamation mark. It is also called “W001”, “caution”, “general danger”, “warning sign” and “yellow triangle exclamation mark”.

General warning sign symbol: yellow triangle with a black border and a black exclamation mark — ISO 7010-W001

Sign type set by Directive 92/58/EEC (Annex II) and the UK Health and Safety (Safety Signs and Signals) Regulations 1996 (Schedule 1); pictogram drawn to ISO 7010, which both allow.

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Warning signs Safety and compliance marks Safety signs (ISO 7010)

General warning sign

Yellow triangle with a black border and a black exclamation mark. · also called “W001”, “caution”, “general danger”, “warning sign”, “yellow triangle exclamation mark”

What the General warning sign symbol means

Danger: take care

This yellow warning sign means there is a hazard here and you should be careful and take precautions. It is a general sign, so it is usually accompanied by a text panel or another sign that names the danger.

Source · Standard ISO 7010 Graphical symbols — Safety colours and safety signs — Registered safety signs · checked Nov 11, 2026

Where it appears

Warning signs

ISO 7010
—This meaning

Questions about the General warning sign symbol

What does the General warning sign symbol mean?: This yellow warning sign means there is a hazard here and you should be careful and take precautions. It is a general sign, so it is usually accompanied by a text panel or another sign that names the danger.
What does the General warning sign symbol look like?: Yellow triangle with a black border and a black exclamation mark. It is also called “W001”, “caution”, “general danger”, “warning sign” and “yellow triangle exclamation mark”.
Which standard defines the General warning sign symbol?: It is listed as ISO 7010-W001.

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

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