Which unit expresses the 12-month threshold for requiring an impervious mixing surface?

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Multiple Choice

Which unit expresses the 12-month threshold for requiring an impervious mixing surface?

Explanation:
Mass is used to express the 12-month threshold because the safety rule is about how much pesticide material is handled over a year. Using pounds as the unit provides a stable, density-independent measure across powders and liquids, making it easier to track and compare year to year. Volume alone (gallons or liters) can vary with concentration and density, which would make the threshold harder to apply consistently. So, when you tally how much product you’ve used or handled in a year, you’re measuring in pounds to determine if an impervious mixing surface is required.

Mass is used to express the 12-month threshold because the safety rule is about how much pesticide material is handled over a year. Using pounds as the unit provides a stable, density-independent measure across powders and liquids, making it easier to track and compare year to year. Volume alone (gallons or liters) can vary with concentration and density, which would make the threshold harder to apply consistently. So, when you tally how much product you’ve used or handled in a year, you’re measuring in pounds to determine if an impervious mixing surface is required.

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