1.1这些试验方法包括测量饱和导水率、保水性、孔隙度（包括在已知基质电位下毛细管和充气孔隙度的分布），以及用于高尔夫球场果岭（包括美国高尔夫协会（USGA）推荐的果岭或其他高度贩运的草坪草区域）施工和表面修整的根区混合物上的颗粒和体积密度 1.2对于USGA推荐的果岭，不需要测量保水性。将其纳入这些试验方法是为了那些希望继续获得此类数据的人。 同样，体积密度不再是USGA根区混合物评估中所需的物理参数，但必须确定体积密度以计算总孔隙度和毛细管孔隙度。 1.3以国际单位制表示的数值应视为标准。括号中的英寸-磅单位仅供参考。 1.4本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 These test methods cover the measurements of saturated hydraulic conductivity, water retention, porosity (including distribution of capillary an air-filled porosity at a known matric potential), and particle and bulk densities on root zone mixes to be used to for construction and topdressing of golf course putting greens including United States Golf Association (USGA) recommended greens or other highly trafficked turfgrass areas 1.2 Water retention is not a required measurement for USGA Recommended greens. Its inclusion in these test methods is for the benefit of those who wish to continue to obtain such data. Likewise, bulk density is no longer a physical parameter required in the evaluation of USGA root zone mixes, but is must be determined for calculation of total and capillary porosity. 1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only. 1.4 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.