| FIBC | Flexible Intermediate Bulk Container: the technical name for a Big Bag. |
|---|---|
| SWL | Safe Working Load: the rated load the Big Bag can carry safely. |
| Safety factor | Ratio between the break load in testing and the SWL (5:1, 6:1). |
| Duffle top | Filling through a fabric skirt that is tied after filling. |
| Open top | Big Bag with no top cover, for direct filling. |
| Filling spout | Fabric tube at the top for filling from a hopper or bagging machine. |
| Discharge spout | Fabric tube at the bottom for controlled emptying. |
| Flat bottom | Closed base with no spout; emptied by cutting or tipping the Big Bag. |
| Liner | Polyethylene inner bag that protects against moisture and contamination. |
| Baffles (Q-bag) | Internal panels sewn across the corners that keep the filled Big Bag square. In Spanish we call them templadores. |
| Q-bag | Big Bag with internal baffles. |
| U-panel | Construction from one U-shaped piece of fabric plus two side panels. |
| Tubular fabric (circular) | Fabric woven as a tube, with no side seams. Once the loops are sewn, the Big Bag is square. |
| Coated fabric | Fabric with a coating that reduces dust and moisture penetration. |
| UV additive | Additive that protects the fabric from sun degradation. |
| Type A, B, C, D | Classification of protection against static electricity. |
| Fabric weight (GSM) | Fabric weight per square meter; it defines its strength. |
| ISO 21898 | International standard of requirements for FIBCs for non-dangerous goods. |
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