Book (read the operator’s manual)
Read the operator’s manual or card before you carry on. It points you to information in the manual that you need for this control, connector or warning.
Symbol reference: ISO 7000-0790
A mark tells you what the maker declares, never that the product is safe.
- What it looks like
- A small open book or manual, drawn in outline.
- Who may apply it
- The equipment maker, at a place where the operator’s manual or card should be read before carrying on.
What it does not promise
It does not say what the risk is. That is in the manual, and so is the answer. A related ISO 7000 symbol, 1641 (operator’s manual; operating instructions), marks where the manual is kept or information that relates to the operating instructions.
Sources
Each page below was fetched and read on the date shown. Where a symbol’s IEC 60417 or ISO 7000 number is given, a public page listing that number is among them.
- Wikimedia Commons: File page for ISO 7000 reference 0790, Read operator’s manual — “ISO 7000 - Ref-No 0790 Read operator's manual; To indicate that the operator's manual or card should be read before continuing the operation.” Checked 2026-09-24.
- Wikimedia Commons: File page transcribing ISO 7000 entry 1641 (title, function) — Symbol 1641 from ISO 7000, “Operator's manual; operating instructions”: to identify the location where the operator's manual is stored or information that relates to the operating instructions. Checked 2026-09-24.
Written in our own words; quotations are the sources’ wording.