Interpretation Sheet 2 - Medical electrical equipment - Part 2-33: Particular requirements for the basic safety and essential performance of magnetic resonance equipment for medical diagnosis

Feuille d'interprétation 2 - Appareils électromédicaux - Partie 2-33: Exigences particulières pour la sécurité de base et les performances essentielles des appareils à résonance magnétique utilisés pour le diagnostic médical

General Information

Status
Published
Publication Date
17-Nov-2025
Current Stage
PPUB - Publication issued
Start Date
18-Nov-2025
Completion Date
12-Dec-2025
Ref Project

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Standard
IEC 60601-2-33:2022/ISH2:2025 - Interpretation Sheet 2 - Medical electrical equipment - Part 2-33: Particular requirements for the basic safety and essential performance of magnetic resonance equipment for medical diagnosis Released:18. 11. 2025
English language
2 pages
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Standards Content (Sample)


INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60601-2-33
Edition 4.0  2022-08
Medical electrical equipment -
Part 2-33: Particular requirements for the basic safety and essential
performance of magnetic resonance equipment for medical diagnosis

INTERPRETATION SHEET 2
This interpretation sheet has been prepared by subcommittee 62B: Medical imaging
equipment, software, and systems, of IEC technical committee 62: Medical equipment,
software, and systems.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
62B/1393/DISH 62B/1402/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

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201.9.6.2.1.101 Acoustic noise requirements inside the MR EXAMINATION ROOM
The requirement is clarified as follows:
Exposure of the PATIENT, MR WORKERS and other persons is expressed as acoustic noise
emission value, produced by MR EQUIPMENT, or the emission levels specified. Thus, exposure
is not the sound level at or inside the ear, but the sound level to which the means for hearing
protection is exposed.
The compliance section is clarified as follows:
The following expression shall be evaluated:
99 + hearing protection value > L
Aeq,1h
where L is derived using the
...

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