| 0 - | Does not cause contamination: Goods having no contaminating properties, i.e. which do not cause contamination by dust, dirt or fats/oils. |
| 1 - | Causes contamination by dust: Dust is released by the goods, especially during handling, and gradually settles onto other goods. However, dust formation and the chemical properties of the dusts are generally of little significance for packaged goods, from which they may easily be removed. |
| 2 - | Causes contamination by severe dust: Dust formation is either so severe that even packaged goods are damaged to such an extent that claims and impairment of quality are to be anticipated; or, due to its chemical properties, even small amounts of dust may cause damage, e.g. coloring earths. |
| 3 - | Causes contamination by dirt: Dirt is contamination whose vehicle and/or binder may be considered to be moisture. When moisture combines with solid particles, e.g. cargo residues, slimy, mushy or sticky substances are formed which soil the surface of the goods. The dirt sticks on and results in claims or impairment of quality. The dirt may also mix with the goods. |
| 4 - | Causes contamination by fats/oils: Fats and oils are staining substances which penetrate into the surface or upper layers of goods and cause sometimes irreversible stains (e.g. on marble). They may, however, also penetrate deeper into the goods and saturate them. Self-heating may occur as a consequence. |
| 5 - | Causes contamination by dust, severe dust and dirt |
| 6 - | Causes contamination by dust, severe dust and fats/oils |
| 7 - | Causes contamination by dirt and fats/oils |
| 8 - | Causes contamination by dust, severe dust, dirt and fats/oils |
| 9 - | Causes contamination by leaks |