When reporting data, what is the preferred precision for values exceeding 10% retained by wash?

When it comes to reporting data for values exceeding 10% retained by wash, the preferred precision is to report to the nearest whole number. This is a standard practice in construction materials testing because when the percentage retained is above 10%, the variations that might occur are generally not significant enough to warrant a decimal place. Reporting to the nearest whole number simplifies the presentation of data, making it easier for stakeholders to interpret the results without losing critical context.

Maintaining a whole number reporting format aligns with field practices that prioritize clarity and straightforwardness in data communication. It also avoids confusion that could arise from presenting excessively precise data that may not reflect actual field conditions, where slight variances in measurements are acceptable. Reporting percentages exceeding 10% in whole numbers allows for more efficient analysis and comparison with other test results while still adhering to industry standards.

In contrast, reporting to one decimal place or finer precision may imply a degree of accuracy that is unnecessary given the typical variability encountered in field conditions. Reporting as a fraction could also complicate data interpretation, while reporting to the nearest thousandth is generally unnecessary for percentages over 10%, where a straightforward whole number is sufficient for practical applications.