UN Certified Bulk Bags
UN certification is a tested package standard, not a label. The bag is qualified against drop, topple, righting and stacking tests, and carries the marking that proves it — which is what an inspector reads.
What certification means here
A UN certified FIBC has been through a defined test regime and carries a marking that records the result. The tests cover dropping, toppling, righting and stacking, at a severity set by the packing group the package is certified for.
That is the whole value of the certification: it is evidence, produced by testing, that this package design holds the class of material it claims to hold.
Certification only holds if you use it as tested
The most common way a certified package stops being compliant is in use, not in manufacture. Filling past the marked gross mass, closing it differently from the tested configuration, or using a package certified for packing group III to ship packing group II material — each of these voids the basis of the certification while the marking still reads perfectly fine.
Tell us the classification and the gross mass you need per bag, and we will quote a package that is actually certified for it.