Petr Explosives Blog

Introduction to Loading Density in Blasting Using PetsTool Calculator

Introduction to Loading Density for Blasters How to Calculate It and Use the PETS Toolbox Calculator Loading Density (LD) is one of the most useful calculations in blast design. It…

Explosives R&D and Technical Support for Establishing Explosives Research Laboratories

What Laboratories Must Know About Regulatory Compliance and Scale-Up By Petr Explosives Group | Practical Explosives Training School (PETS) Research laboratories working with energetic materials in Colorado operate in a…

How to Log Explosives in Your Magazine 📦

How to Log Explosives in Your Magazine During Delivery and Daily Use Accurate explosive logging is not optional — it is a legal requirement and a core part of professional…

Inventory Doesn’t Match Your Magazine? Here’s What You Must Do Immediately

If your inventory does not match the explosives physically inside the magazine, you must treat it as a serious compliance and safety issue. Below is a clear, professional breakdown for…

Monthly Explosive Inventory & How to calculate it

Using the PETS Toolbox Inventory Calculator For licensed blas For licensed blasters, explosive inventory is not optional — it is a regulatory requirement. Whether you operate under ATF regulations, state…

How to Calculate Loading Density (lbs/ft or kg/m) with the PETS Toolbox Calculator

Loading density (sometimes called linear charge concentration) is one of the fastest ways to sanity-check a loading plan, document what was actually loaded, and communicate clearly between the blaster, loader,…