If the percentage of material finer than the 75 μm sieve is 10% or more, how should it be reported?

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Multiple Choice

If the percentage of material finer than the 75 μm sieve is 10% or more, how should it be reported?

When reporting sieve analysis results, the level of precision depends on how large the measured percentage is. For the fraction finer than the 75 μm sieve, if you have 10% or more, you round to the nearest whole percent. This matches standard lab practice because at or above 10% the additional decimals don’t meaningfully change interpretation, and the typical measurement uncertainty supports whole-percent reporting. If the value were below 10%, you’d use finer precision (such as 0.1% or 0.01%) to reflect the smaller quantities more accurately. So, for a result of 10% or more, reporting to the nearest whole percent is the appropriate approach.

When reporting sieve analysis results, the level of precision depends on how large the measured percentage is. For the fraction finer than the 75 μm sieve, if you have 10% or more, you round to the nearest whole percent. This matches standard lab practice because at or above 10% the additional decimals don’t meaningfully change interpretation, and the typical measurement uncertainty supports whole-percent reporting. If the value were below 10%, you’d use finer precision (such as 0.1% or 0.01%) to reflect the smaller quantities more accurately. So, for a result of 10% or more, reporting to the nearest whole percent is the appropriate approach.

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