1.1 本试验方法描述了使用微型微通道粘度计在40°C、12.9 mm范围内测量透明和不透明液体（如新润滑油和在用润滑油）运动粘度的方法 2. /s至174 毫米 2. /秒 1.2 仅针对这些材料和粘度范围确定了精度，如第节所示 17 关于精度和偏差。 1.3 该测试方法专门针对现场新润滑油和在用润滑油的运动粘度进行快速、直接、温度稳定的实时测量，无需使用溶剂或化学清洗剂。 测量温度为40°C，直接获得运动粘度。不需要温度外推或密度校正。 1.4 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。第节中给出了一些具体的危害说明 9 关于危险。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 该试验方法的意义在于，它提供了一种在40°C下可靠现场测定运动粘度的方法，而无需溶剂或化学清洗。现场使用意味着流体可能非常不透明，例如- 维修发动机机油。可使用一次性无绒布吸油材料（如干净的棉布抹布）清洁设备，操作时只需60µL的样本。因此，该设备为一系列行业提供了独特的服务，在这些行业中，很难或不希望获得任何种类的化学品以确定其感兴趣流体的运动粘度。这类行业的例子包括许多基于海洋的系统，其中船上没有实验室，矿山需要现场测定资产粘度的设备，大型工业工厂需要步行- 油底壳的周围检查大大提高了效率。通过使用该测试方法，可以满足这些关键的使用情况，否则很难直接、立即测量40°C下的运动粘度。

1.1 This test method describes a means for measuring the kinematic viscosity of transparent and opaque liquids such as new and in-service lubricating oils using a miniature microchannel viscometer at 40 °C in the range of 12.9 mm 2 /s to 174 mm 2 /s 1.2 The precision has only been determined for those materials and viscosity ranges, as indicated in Section 17 on Precision and Bias. 1.3 This test method is specifically tailored to obtaining a rapid, direct, temperature- stabilized measure of the kinematic viscosity of new and in-service lubricants in the field in real- time without the use of solvents or chemical cleaning agents. The measurement takes place at 40 °C and kinematic viscosity is directly obtained. No temperature extrapolations or density corrections are necessary. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 9 on Hazards. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The significance of this test method is that it provides a means for a reliable field determination of kinematic viscosity at 40 °C without requiring solvents or chemicals for cleaning. Field use implies that the fluid may be very opaque, such as an in-service engine oil. The device may be cleaned with a disposable lint-free oil-absorbent material such as a clean cotton shop rag, and requires only 60 µL of sample for operation. As such the device provides a unique service to a range of industries where it is difficult or undesirable to obtain chemicals of any sort in order to determine the kinematic viscosity of their fluid of interest. Examples of such industries include many marine-based systems where a laboratory does not exist on-board, mines where equipment is needed for on-the-spot determination of asset viscosity, and large industrial plants where a walk-around inspection of oil sumps greatly increases efficiency. By using this test method, one can serve these crucial use-cases where a direct, immediate measure of kinematic viscosity at 40 °C may otherwise be difficult to obtain.