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Frequent Questions

Max. Concentration-Recycling(Blocks 2.B.11-2.B.12)

A company manufactures a chemical substance at 100% concentration. It is then blended with other chemical substances, resulting in a final product at 60% concentration. This product is drummed and distributed to customers. How should the maximum concentration be reported in Block 2.B.11?
A company manufactures a chemical substance that is sent off-site in products containing from 3% to 33% by weight of the chemical substance. What code should be used to report the maximum concentration in Block 2.B.11?
A company produces a chemical substance at 98% concentration and then reacts the chemical substance to form other chemical products. When the products are packaged and distributed to customers, small amounts of the original chemical substance may be unintentionally present in these products. How should the maximum concentration be reported in Block 2.B.11 of Form U?
How does a company report the maximum concentration in Block 2.B.11 if a chemical substance never leaves the site where it is produced?
If samples are sent off-site for analysis, should these samples be included when reporting the maximum concentration of the chemical substance leaving the site?

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