An FIBC inspection in India checks a random sample of finished bulk bags against your specification before they are packed and shipped. It covers measurements, fabric, stitching, labelling and, where agreed, a load test. It does not replace the factory's own testing, but it checks that the bags in your container match what you ordered.
Bulk bags are safety products. A bag that fails when lifted can injure people, so the inspection is about more than appearance.
What the inspection checks
An inspector works from your specification and the approved sample. A thorough check usually includes:
- Bag dimensions, including body height, width and loop height, against tolerance.
- Fabric weight and construction for body, base and loops.
- Stitching type and density at the loops and seams, where most failures start.
- Liner type, fit and attachment if one is ordered.
- Spout and top design, discharge style, and filling spout size.
- UV treatment and bag type, such as Type C where antistatic performance is ordered.
- Printing and labelling, including the safe working load and safety factor.
The lifting and strength tests
Safe working load and safety factor are the numbers that matter. Common bags are rated at a 5:1 safety factor for single-trip use and 6:1 for multi-trip use, in line with ISO 21898. A top lift test loads a sample bag to a multiple of its rated load and checks it holds. Our guide to the top lift test explains how it is done.
Test only a sample, since the test can damage the bag. Make clear in advance who supplies the test equipment, and whether the tested bags are counted in the order.
Ask for the factory's own test records as well. A reputable plant tests bags from each batch and keeps the results with the batch number. Compare those records with what the inspector finds, and ask what the plant does when a bag fails its own test.
When to inspect
The final inspection is done when production is complete and at least most of the goods are packed. This is the same idea as the final random inspection for textile orders. An earlier check during production catches stitching problems while there is still time to correct them.
Choose a sampling plan before the visit and write it into the order. State the acceptance level for major and minor defects, so the inspector's pass or fail result is clear.
Common failures
The problems that most often show up are loops stitched too lightly, wrong fabric weight, loose liners, incorrect printing of the safety factor, and bags that are out of size. Our note on common complaints with PP bags and FIBCs lists more. Decide beforehand which of these would be rejected and which are tolerated.
Packing is another source of damage. Bags that are compressed too tightly, or stacked on poor pallets, arrive creased and with damaged loops. Ask how the bags will be baled and palletised, and check a sample bale before the container is loaded. Our guide to FIBC types also helps you confirm the right type is ordered.
Next step
Independent inspection is most useful when it is arranged by someone working only for you. We find and audit manufacturers, check samples and documents, and supervise production and loading. Book a free sourcing review and we will set the inspection plan for your bags.