image description

Asbestos Fiber Counting [NIOSH 582] (1616)

IMPORTANT: McCrone Research Institute is adhering to all federal and local COVID-19 safety guidelines. In-person course attendees are required to wear a face mask that covers their nose and mouth for the entire day of class. Learn more

“Tied questions to real-world scenarios, which was very helpful.” — Trevor R.

“Everything was great!” — Michelle B.

“Very happy with instructor and instructions provided.” — Vivek J.

“Great instructor.” — Nicole


Course schedule: 8:00 a.m. – 5:00 p.m. Monday – Thursday, and 8:00 a.m. – 12:00 p.m. Friday

This is the NIOSH 582 course: “Sampling and Evaluating Airborne Asbestos Dust.”

The NIOSH 7400 method using phase contrast microscopy (PCM) is detailed, including QA/QC procedures, statistics, and sampling-related mathematics.

At the conclusion of the course, students are able to properly calibrate and use the sampling equipment; align and calibrate the microscope and apply the NIOSH 7400 protocols; prepare samples for analysis; and apply the procedures for collection and quantitation of ambient dust samples.

Practical field-related problems are discussed.

4.5 CM credits

Prerequisites: NIOSH 582 Prospective for Students (PDF)

Day 1
• Setting up the microscope
• Illumination
• Phase contrast microscopy
• Micrometry
• Graticules
• Asbestos types
• Particle morphology
• Introduction to statistics

Day 2
• Statistics, sampling and airflow calibration equipment
• Asbestos sampling procedures
• Universal gas laws
• Sampling related mathematics
NIOSH 7400 counting procedures: “A” counting rules and “B” counting rules
• Pretest

Day 3
• Slide counting
• P & Cam 239 vs. NIOSH 7400
• Slide counting and filter mounting
• Statistics review
• Pretest review

Day 4
• Round-robin counting
• Compliance testing
• Sampling strategies
• Pretest review
• Practical field problems
• Special methods
• Introduction to asbestos bulk analysis

Day 5
• Review
• Final exam