The purpose of these color codes is to allow for quick identification of ingot bundles or jumbo ingots of zinc casting alloys. Other than jumbo ingots, this standard is not intended to imply that each ingot will be color-coded but only that each ingot bundle be color coded.
Each ingot bundle or jumbo ingot shall be identified with the appropriate color code listed in Table 1.
The color will be applied as a stripe, or stripes, on two adjacent sides of the ingot bundle or jumbo ingot. The color stripes will be applied to include the ingot bundle foot.
When using multiple stripes, the colored stripes will be applied from left to right as indicated in Table 1.
In the absence of a written agreement to the contrary between the supplier and end user, the North American color code will be the standard for all North American transactions; for all other transactions the International Color Code will be used.
TABLE 1 Color Codes
| Common | UNSA | ASTM Standard | ASTM Alloy | Traditional | Color Code | |
| North AmericaB | International | |||||
| Alloy 3 | Z33521 | B240 | AG 40AC | Zamak 3 | None | White/YellowD |
| Alloy 7 | Z33522 | B240 | AG 40BC | Zamak 7 | Brown | White/BrownE |
| Alloy 5 | Z35530 | B240 | AC 41AC | Zamak 5 | Black | White/BlackD |
| Alloy 2 | Z35540 | B240 | AC 43AC | Zamak 2 | Green | White/GreenD |
| ZA-8 | Z35635 | B240 | ZA-8 | ZA-8 |
ASTM B908-09 history
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