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1.1 This practice details the procedure for determining the aggregate spread rates in approximately 0.33-m transverse increments.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

4.1 This practice can be used to calibrate aggregate spreaders and verify the uniformity of distribution transversely prior to construction of the surface treatment by determining the average quantity of aggregate spread per unit area.

4.2 This practice can be useful for quality control during construction to monitor the spread rate.

4.3 The samples obtained during construction can also be used for the determination of moisture content and grading when such information is required.