When multiple increments are obtained, what should be done with them?

When multiple increments are obtained, what should be done with them?

• A. They should be kept separate
• B. Only the largest increment used
• C. They should be of equal size and thoroughly combined to form a single sample
• D. They should be weighed separately

Answer: (C)

When collecting multiple increments, the goal is to get a representative picture of the whole batch. Making the increments equal in size and then thoroughly mixing them to form one composite sample ensures that the test result reflects the material across the entire lot, not just a single portion. This averaging out of local variations gives a more accurate, repeatable result for what you’re testing. If you kept increments separate, you’d be testing only individual portions, which can bias the outcome because different parts of the batch may differ. Relying on only the largest increment would skew the result toward that portion, while weighing each increment separately would produce multiple values rather than a single representative result.

When collecting multiple increments, the goal is to get a representative picture of the whole batch. Making the increments equal in size and then thoroughly mixing them to form one composite sample ensures that the test result reflects the material across the entire lot, not just a single portion. This averaging out of local variations gives a more accurate, repeatable result for what you’re testing.

If you kept increments separate, you’d be testing only individual portions, which can bias the outcome because different parts of the batch may differ. Relying on only the largest increment would skew the result toward that portion, while weighing each increment separately would produce multiple values rather than a single representative result.