General Rules for Volume Number (required) for Journal Articles Vancouver Style

Omit "volume", "vol.", and similar wording preceding the number.

Use arabic numbers; only convert LX or Sixtieth to 60.

Separate multiple volumes by a hyphen, such as 5-6 or 42-43.

Do not follow volume number(s) with any punctuation unless there is no issue number or other subdivision to the volume, then follow with a colon.

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Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 1: Journals

Related:

General Rules for Volume Number (required) for Journal Articles Vancouver Style

Specific Rules #1 for Volume Number (required) for Journal Articles Vancouver Style: No volume number present

Specific Rules #2 for Volume Number (required) for Journal Articles Vancouver Style: Non-English names for volume

Examples for Volume Number (required) for Journal Articles Vancouver Style