New course is comming on July 2026
Why Do You Care about Stemming Length Calculation
Why Do You Care about Stemming Length Calculation: Good & Bad Practices Petr Explosives Group | Technical Blog Stemming Done Right: A Blaster’s Guide to Better Confinement Proper stemming is…
How to Calculate Quarry Production from Blast Design
How to Calculate Quarry Production from Blast Design By Petr Explosives Group & Practical Explosives Training School (PETS) One of the most important goals in quarry blasting is achieving the…
What Goes Into a Safe Quarry Blast? “A Beginner’s Guide to Blast Design”
What Goes Into a Safe Quarry Blast? A Beginner’s Guide to Blast Design By Petr Explosives Group & Practical Explosives Training School (PETS) If you’ve ever watched a quarry blast…
Blasting Misfires: What Every Blaster Needs to Know
Blasting Misfires: What Every Blaster Needs to Know By Petr Explosives Group & Practical Explosives Training School (PETS) If you’ve spent any time in the field, you know that misfires…
What is Misfire and What is Safety in Surface Blasting
What is Misfire, and What is Safety in Surface Blasting Waiting Periods, Risk Factors, and Industry Practice Practical Explosives Training School (PETS) | Petr Explosives Group (PEG) 1. Why…
Recognizing Impairment in Blasting Operations: A Critical Safety Priority
Recognizing Impairment in Blasting Operations: A Critical Safety Priority At Petr Explosives Group and the Practical Explosives Training School (PETS), safety is non-negotiable. During many of our training classes, students…
Didn’t find a course that fits?
Tell us what you’re looking for — we’ll create a custom training that meets your needs.
