"These methods of test are intended for determining the relation between moisture content and density of soil-cement mixtures when compacted before cement hydration as prescribed. A 944-cm3 (1/30-ft3) mold and a 2.5-kg (5.5-lb) rammer dropped from a height of 305 mm (12 in.) are used and two methods@ depending on soil gradation@ are covered@ as follows: ? Method A??Soil material passing a 4.75-mm (No. 4) sieve. This method shall be used when 100 percent of the soil sample passes the 4.75-mm (No. 4) sieve. ? Method B??Soil material passing a 19.0-mm (3/4-in.) sieve. This method shall be used when part of the soil sample is retained on the 4.75-mm (No. 4) sieve. This test method applies to soil-cement mixtures that have 30 percent or less retained on the 19.0- mm (3/4-in.) sieve@ when Method B is used. The material retained on these sieves shall be defined as oversized particles (coarse particles). The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications@ an observed value or a calculated value shall be rounded off ""to the nearest unit"" in the last right-hand place of figures used in expressing the limiting value@ in accordance with ASTM E 29."