Washington Pesticide Laws and Safety Practice Test

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Prepare for the Washington Pesticide Laws and Safety Exam. Enhance your knowledge with multiple-choice questions and study materials tailored for Washington's regulations. Get ready to succeed on your test!

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How do you calculate the amount of an AI in a dry formulation?

  1. By volume of product

  2. By weight multiplied by percent of AI

  3. By volume of AI per gallon

  4. Directly from the label

The correct answer is: By weight multiplied by percent of AI

When calculating the amount of an AI (active ingredient) in a dry formulation, it is important to use weight rather than volume. This is because the concentration of the AI is based on weight, not volume. Option A is incorrect because using volume of the overall product will not accurately reflect the amount of the active ingredient. Option C is incorrect because it only accounts for the volume of the AI, not its weight. Option D may provide the percentage of the AI, but it does not calculate the actual amount needed. Therefore, the best and most accurate way to calculate the amount of AI in a dry formulation is by using weight multiplied by the percentage of AI.

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