For samples up to 200g, what is the required readability of the scale according to ASTM D2216?

According to ASTM D2216, which provides guidelines for determining the water content of soils, the required readability of the scale for samples weighing up to 200 grams is specified as 0.01 grams. This level of precision is necessary to ensure that measurements are accurate and reliable when calculating the moisture content of soil and aggregate materials. The need for such precision is critical in laboratory testing, as even small errors in measurement can significantly affect the results of moisture content calculations, impacting the overall quality and performance of materials used in construction and engineering applications. The specified readability ensures that technicians can perform accurate assessments, leading to better decision-making in material applications.