ISO 10767-1:2015建立了测量容积式液压泵的源流纹波和源阻抗的试验程序。它适用于在稳态条件下运行的所有类型的容积泵，不考虑尺寸，前提是泵送频率在50 Hz到400 Hz之间。 源流波纹会导致流体传播的振动（压力波纹），然后是来自液压系统的空气噪声。本程序涵盖的频率范围和压力范围已被发现会导致许多回路发出空气噪声，这是液压流体动力系统设计中的一个主要困难。一旦液压流体动力泵的源流脉动和源阻抗已知，就可以利用系统部件已知的脉动传播特性，通过计算机模拟计算液压流体动力系统中泵产生的压力脉动。 因此，ISO 10767的这一部分允许通过建立测量和报告液压流体动力泵的源流波纹和源阻抗特性的统一程序来实现低噪声流体动力系统的设计。 在ISO 10767-1:2015中，作为压力波动的一个例子，对阻塞的声压波动进行了计算。附录B中给出了该试验程序的方法和理论基础的解释。该试验程序在这里称为双压力/双系统法。评级结果如下: a） 源流纹波（在标准“诺顿”模型中）振幅（以立方米/秒[m3/s]为单位）和相位（以度为单位）超过泵送频率的10个单独谐波； b） 源流纹波（在修改后的模型中）振幅（以立方米/秒[m3/s]为单位）和相位（以度为单位）超过泵送频率的10次单独谐波；以及它的时间历史波形， c） 源阻抗振幅，单位为牛顿秒/米，五次方[（Ns）/m5]。，和相位，在一定程度上，超过10个单独的泵频谐波； d） 阻塞的声压波动，单位为兆帕（1兆帕=106帕）或巴（1巴=105帕），超过泵送频率的10个单独谐波；以及压力波动谐波f1到f10的均方根平均值。

ISO 10767-1:2015 establishes a test procedure for measuring the source flow ripple and source impedance of positive-displacement hydraulic pumps. It is applicable to all types of positive-displacement pumps operating under steady-state conditions, irrespective of size, provided that the pumping frequency is in the range from 50 Hz to 400Hz. Source flow ripple causes fluid borne vibration (pressure ripple) and then airborne noise from hydraulic systems. This procedure covers a frequency range and pressure range that have been found to cause many circuits to emit airborne noise which presents a major difficulty in design of hydraulic fluid power systems. Once the source flow ripple and source impedance of hydraulic fluid power pump are known, the pressure ripple generated by the pump in the fluid power system can be calculated by computer simulation using the known ripple propagation characteristics of the system components. As such, this part of ISO 10767 allows the design of low noise fluid power systems to be realized by establishing a uniform procedure for measuring and reporting the source flow ripple and the source impedance characteristics of hydraulic fluid power pumps. In ISO 10767-1:2015, calculation is made for blocked acoustic pressure ripple as an example of the pressure ripple. An explanation of the methodology and theoretical basis for this test procedure is given in Annex B. The test procedure is referred to here as the two pressures/two systems method. Ratings are obtained as follows: a) source flow ripple (in the standard "Norton" model) amplitude, in cubic meter per second[m3/s], and phase, in degree, over 10 individual harmonics of pumping frequency; b) source flow ripple (in the modified model) amplitude, in cubic meter per second [m3/s], and phase, in degree, over 10 individual harmonics of pumping frequency; and its time history wave form, c) source impedance amplitude, in Newton second per meter to the power of five [(Ns)/m5]., and phase, in degree, over 10 individual harmonics of pumping frequency; d) blocked acoustic pressure ripple, in MPa (1 MPa = 106 Pa) or in bar (1 bar = 105 Pa), over 10 individual harmonics of pumping frequency; and the RMS average of the pressure ripple harmonic f1 to f10.