BOHS M501 - Measurement of Hazardous Substances

Syllabus/Course Structure and Assessment

This examination provides you with a sound understanding of the techniques for assessing exposure to hazardous substances in the workplace and with an understanding of how exposure information can be used to assess risk.

Learning objectives

On completing this examination, you will be able to:

How is the course assessed?

There will be a 40 short answer question “open book” examination with an allowed time of 120 minutes.

Who is this course suitable for?

This examination is suitable for technicians and technologists who carry out measurements and testing in workplaces

Course Timing

Duration: 5 days

Start time: 9am on course day

Finish time: Approximately 4pm







Thank you for your course/exam booking with AEC. Please see the below update from BOHS.

Please note, we have been informed by BOHS that from 1st November 2025 all AEC BOHS classroom courses will be electronic exams only. BOHS will no longer be sending paper exams. Therefore, we will now require BOHS Candidate Information Forms to be sent to us to process your exam booking . BOHS will not issue paper exams. This form must be completed and returned to training@aec.uk within 48 hours of making the booking, without this form, we cannot order an exam for you.

All classroom courses will now have a remote exam set up by BOHS. You will need to bring a laptop with you to complete the exam. Please bring this with you on the first day of the course.

Please click here for further online Exam FAQ’s, test examination, guidance and contact information.

The reason for the above is because BOHS will now be using an online exam software provider, Eva, to provide the function to generate online exams.

This should help speed up the turnaround time for the marking process.

Many thanks

We appreciate your assistance with this matter



Location - Manchester

Quality Assured

Accreditation  Image