IEC 60601
International electrical-safety standard for medical electrical equipment. Modality-specific particular standards include 60601-2-33 (MRI), 60601-2-44 (CT), 60601-2-54 (radiography), 60601-2-43 (interventional X-ray), 60601-2-45 (mammography), and others.
Why it matters to buyers: Manufacturers must certify; hospitals cross-check at acceptance. Non-compliant equipment cannot be installed in regulated jurisdictions.
Why it matters to engineers: Revisions and national deviations exist (ANSI/AAMI ES60601-1 in U.S., EN 60601-1 in EU); confirm the specific edition relevant to the install country.