1.1本试验方法涵盖数据收集和分析程序，通过计算测量线和表面的波纹度指数、定义轮距的高差以及使用国际单位制的水平度指数来确定表面平整度和水平度。 注1 — 本试验方法是英寸-磅试验方法E1486的配套方法。 注释2 — 本试验方法不适用于粘土或混凝土摊铺机装置，也不适用于粘土或混凝土摊铺机装置。 1.1.1本试验方法的目的是向用户提供如下地板公差估计值: 1.1.1.1地板局部测量线波纹度和整体表面波纹度指数基于沿地板标高剖面测量线移动时与假想弦中点的偏差。弦的端点始终与曲面接触。假想的弦穿过混凝土表面上高于弦的任何点。 1.1.1.2基于横向和纵向高程差、高程差变化和均方根（RMS）高程差定义的轮距标准。 1.1.1.3采用以下任一方法表征的表面的水平度标准:标高数据与试验段标高数据平均值的一致性；或通过每条测线的均方根斜率符合每条测线的指定斜率。 1.1.2整个计算过程中使用的平均值为均方根RMS（即二次平均值）。该测试方法对向上（+）和向下测量的驼峰和凹陷具有同等重要性(−), 分别来自假想的和弦。 1.1.3 附录X1 是对该测试方法的评论。 附录X2 提供了一个基于此测试方法的波浪度指数计算的计算机程序。 1.2以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在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。 ====意义和用途====== 5.1本试验方法提供了有关地板表面轮廓的统计和图形信息。 5.2 本试验方法的结果用于以下目的: 5.2.1确定随机或固定路径交通地板表面符合规定公差； 5.2.2评估不同施工方法对产生的地板表面波纹度的影响； 5.2.3调查混凝土地板表面的卷曲和挠度； 5.2.4建立、评估和调查其他表面的轮廓特征；和 5.2.5建立、评估和调查表面的水平度特征。 5.3 应用程序: 5.3.1 随机流量- 当穿过一层的交通模式不固定时，应使用两组大致等距且彼此成直角的测线。测量线应在整个试验段上隔开，以产生总长度大致相等的线，既平行于又垂直于最长的试验段边界。 限制规定见 7.2.2 和 7.3.2 . 5.3.2 定义的车轮路径交通量- 对于主要用于定义车轮路径交通的表面，仅应测量两个车轮路径和车轮之间的初始横向高差（“侧到侧”）。 5.3.3 测量时间- 对于新的混凝土楼板施工，应在最终混凝土修整后72小时内进行标高测量。对于现有结构，应酌情进行测量。 5.3.4 标高一致性- 使用仅限于有支撑的悬浮表面。 5.3.5 均方根水平度- 使用不受限制，但不适用于弧面和无阴影的高架表面。

1.1 This test method covers data collection and analysis procedures to determine surface flatness and levelness by calculating waviness indices for survey lines and surfaces, elevation differences of defined wheel paths, and levelness indices using SI units. Note 1 — This test method is the companion to inch-pound Test Method E1486. Note 2 — This test method was not developed for, and does not apply to clay or concrete paver units. 1.1.1 The purpose of this test method is to provide the user with floor tolerance estimates as follows: 1.1.1.1 Local survey line waviness and overall surface waviness indices for floors based on deviations from the midpoints of imaginary chords as they are moved along a floor elevation profile survey line. End points of the chords are always in contact with the surface. The imaginary chords cut through any points in the concrete surface higher than the chords. 1.1.1.2 Defined wheel path criteria based on transverse and longitudinal elevation differences, change in elevation difference, and root mean square (RMS) elevation difference. 1.1.1.3 Levelness criteria for surfaces characterized by either of the following methods: the conformance of elevation data to the test section elevation data mean; or by the conformance of the RMS slope of each survey line to a specified slope for each survey line. 1.1.2 The averages used throughout these calculations are the root mean squares, RMS (that is, the quadratic means). This test method gives equal importance to humps and dips, measured up (+) and down (−), respectively, from the imaginary chords. 1.1.3 Appendix X1 is a commentary on this test method. Appendix X2 provides a computer program for waviness index calculations based on this test method. 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. ====== Significance And Use ====== 5.1 This test method provides statistical and graphical information concerning floor surface profiles. 5.2 Results of this test method are for the purpose of the following: 5.2.1 Establishing compliance of random or fixed-path trafficked floor surfaces with specified tolerances; 5.2.2 Evaluating the effect of different construction methods on the waviness of the resulting floor surface; 5.2.3 Investigating the curling and deflection of concrete floor surfaces; 5.2.4 Establishing, evaluating, and investigating the profile characteristics of other surfaces; and 5.2.5 Establishing, evaluating, and investigating the levelness characteristics of surfaces. 5.3 Application: 5.3.1 Random Traffic— When the traffic patterns across a floor are not fixed, two sets of survey lines approximately equally spaced and at right angles to each other shall be used. The survey lines shall be spaced across the test section to produce lines of approximately equal total length, both parallel to and perpendicular to the longest test section boundary. Limits are specified in 7.2.2 and 7.3.2 . 5.3.2 Defined Wheel Path Traffic— For surfaces primarily intended for defined wheel path traffic, only two wheel paths and the initial transverse elevation difference (“side-to-side”) between wheels shall be surveyed. 5.3.3 Time of Measurement— For new concrete floor construction, the elevation measurements shall be made within 72 h of final concrete finishing. For existing structures, measurements shall be taken as appropriate. 5.3.4 Elevation Conformance— Use is restricted to shored, suspended surfaces. 5.3.5 RMS Levelness— Use is unrestricted, except that it is excluded from use with cambered surfaces and unshored, elevated surfaces.