The most recent scanning electron microscopy fibre counting scheme (SEMS) group report.
Scanning electron microscopy fibre counting scheme (SEMS) group report - October 2025
- Reference:
- Version 1
- Document type:
- PDF, 221KB
Details
The scanning electron microscopy fibre counting scheme (SEMS) aims to assess the proficiency of laboratories counting asbestos fibres in air, using scanning electron microscopy.
Previous SEMS group reports are available on the National Archives website.