ISO/TS 18409:2018规定了两种收集流体样品的方法，用于分析一定内径和长度范围内的液压流体动力软管或软管组件的清洁度（该范围包括实际流体动力应用的大多数软管组件）。 本文件中描述的两种方法仅用于收集固体颗粒污染物；它们可能不适合收集液体或油脂形式的污染物。 ISO/TS 18409:2018是ISO 18413:2015，特别是附录a和B的具体应用。 ISO/TS 18409:2018的范围不包括为软管组件提供高效和有效的清洁方法。 建议将这些方法用于其他软管清洗方法的统计验证，这些方法更适用于大批量生产的系统处理。 污染分析不在本文件范围内。

ISO/TS 18409:2018 specifies two methods for collecting a fluid sample to be used to analyse the cleanliness of hydraulic fluid power hoses or hose assemblies within a certain inside diameter and length range (this range includes the majority of hose assemblies of real fluid power applications). The two methods described in this document are intended for collecting only solid particulate contamination; they may not be appropriate for collecting contamination in liquid or grease form. ISO/TS 18409:2018 is a specific application of ISO 18413:2015, specifically Annexes A and B. The scope of ISO/TS 18409:2018 does not include providing efficient and effective cleaning methods for hose assemblies. These methods are recommended for statistical validation of other hose cleaning methods, which are more suitable for systematic processing of large production batches. Contamination analysis is excluded from the scope of this document.