1.1本文件规定，根据ISO 10326？1:20 16，一种测量和评估座椅悬架在降低频率在1 Hz和20 Hz之间传递给土方机械操作员的垂直全身振动方面的有效性的实验室方法。它还规定了应用于不同机器座椅的验收标准。 1.2本文件适用于ISO 6165定义的土方机械上使用的操作员座椅。 1.3本文件定义了下列土方机械所需的输入光谱类别。每个类定义了一组具有相似振动特性的机器: -工作质量>4 500公斤的刚性框架翻斗车； -铰接式车架翻斗车； -没有轴或框架悬挂的铲运机[1]； -工作质量>4 500公斤的轮式装载机；-分级; -轮式推土机； -土壤压实机； -挖掘装载机； -履带式翻斗车； -履带式装载机； -工作质量≤50 000 kg的履带式推土机[2]； -工作质量≤4 500公斤的紧凑型翻斗车； -工作质量≤4 500公斤的轮式紧凑型装载机； -滑移转向装载机，轮式≤4 500公斤，履带式≤6 000公斤。 1.4下列机器在运行过程中向座椅施加频率在1赫兹至20赫兹之间的足够低的垂直振动输入，使得这些座椅不需要悬挂来衰减传递的振动: -挖掘机，包括步行式挖掘机和电缆挖掘机[3]； -挖沟机； -垃圾填埋场压实机； -非振动压路机，土壤压实机除外； -振动压路机，土壤压实机除外； -铺管机； -水平定向钻机（HDD）。1.5本文件中定义的测试和标准适用于常规设计的土方机械中使用的操作员座椅。 注:其他测试可能适用于具有明显不同振动特性的设计特征的机器。 1.6不包括通过座椅到达操作者的振动，例如操作者的脚在平台或控制踏板上或操作者的手在方向盘上感受到的振动。 [1]对于带悬架的铲运机，可以使用不带悬架的座椅，也可以使用具有高阻尼悬架的座椅。 [2]对于大于50 000 kg的履带式推土机，座椅性能要求适合由软垫式座椅提供。 [3]对于挖掘机，主要振动通常在前后（X）轴上。

1.1 This document specifies, in accordance with ISO 10326？1:2016, a laboratory method for measuring and evaluating the effectiveness of the seat suspension in reducing the vertical whole-body vibration transmitted to the operator of earth-moving machines at frequencies between 1 Hz and 20 Hz. It also specifies acceptance criteria for application to seats on different machines. 1.2 This document is applicable to operator seats used on earth-moving machines as defined in ISO 6165. 1.3 This document defines the input spectral classes required for the following earth-moving machines. Each class defines a group of machines having similar vibration characteristics: — rigid-frame dumpers >4 500 kg operating mass; — articulated-frame dumpers; — scrapers without axle or frame suspension[1]; — wheeled loaders >4 500 kg operating mass; — graders; — wheeled dozers; — soil compactors; — backhoe loaders; — crawler dumpers; — crawler loaders; — crawler-dozers ≤50 000 kg operating mass[2]; — compact dumpers ≤4 500 kg operating mass; — wheeled compact loaders ≤4 500 kg operating mass; — skid-steer loaders, wheeled ≤4 500 kg and tracked ≤6 000 kg operating mass. 1.4 The following machines impart sufficiently low vertical vibration inputs at frequencies between 1 Hz and 20 Hz to the seat during operation that these seats do not require suspension for the attenuation of transmitted vibration: — excavators, including walking excavators and cable excavators[3]; — trenchers; — landfill compactors; — non-vibratory rollers, except soil compactors; — vibratory rollers, except soil compactors; — pipelayers; — horizontal directional drills (HDD). 1.5 The tests and criteria defined in this document are intended for operator seats used in earth-moving machines of conventional design. NOTE Other tests can be appropriate for machines with design features that result in significantly different vibration characteristics. 1.6 Vibration which reaches the operator other than through the seat, for example that sensed by the operator's feet on the platform or control pedals or by the operator′s hands on the steering-wheel, is not covered. [1] For scrapers with suspension, either a seat with no suspension can be used, or one having a suspension with high damping. [2] For crawler dozers greater than 50 000 kg, the seat performance requirements are suitably provided by a cushion type seat. [3] For excavators, the predominant vibration is generally in the fore and aft (X) axis.