Certification and GOST: How to Check Crushed Stone Quality

By purchasing crushed stone without documents, you risk the safety of your facility. Let's analyze what certificates every batch should have.

Quality Passport

Each batch of crushed stone from our quarry is accompanied by a quality passport.

What to check in the passport:

• GOST compliance: ensure the number is current for this type of product.
• Strength grade: must match the declared one.
• Flakiness: the lower, the better (up to 15% is excellent).
• Radioactivity: Class 1 only for residential construction.

Main GOST Standards

• GOST 8267-93: general requirements for crushed stone.
• GOST 7392-2014: railway ballast crushed stone.
• GOST 9757: crushed stone for lightweight concrete.

Our quarry has all the necessary certificates of conformity. We provide a full package of documents for every shipment.

Conclusion

Always demand a quality passport. This will protect you from low-quality materials.