1.1 本试验方法包括通过摆动活塞粘度计测量液体（如新润滑油和在用润滑油）的动态粘度和推导运动粘度。 1.2 本试验方法适用于牛顿和非牛顿液体；然而，精度声明是使用牛顿液体开发的。 1.3 本试验方法涵盖的动态粘度范围为0.2 mPa·s至20 000 mPa·s（约为0.2的运动粘度范围 毫米 2. /s至22 000 毫米 2. /对于新机油），温度范围为-40 °C至190 °C；然而，仅确定了34范围内的新油和旧油的精度 mPa·s至1150 40 mPa·s °C，5.7 mPa·s至131 100 mPa·s °C和46.5 毫米 2. /s至436 毫米 2. /s在40 °C。 1.4 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。 1.5 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、健康和环境实践，并确定监管限制的适用性。 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 许多石油产品以及非石油材料用作轴承、齿轮、压缩机气缸、液压设备等的润滑剂。该设备的正确操作取决于这些液体的粘度。 5.2 振荡活塞粘度计可以测量各种材料的粘度，包括透明、半透明和不透明液体。测量原理和不锈钢结构使振荡活塞粘度计具有抗损坏性，适合便携式操作。 测量本身是自动的，不需要操作员计时活塞的振荡。电磁驱动活塞在测试时混合样品。仪器需要小于5的样品体积 mL，典型溶剂体积小于10 最大限度地减少清理工作和浪费。

1.1 This test method covers the measurement of dynamic viscosity and derivation of kinematic viscosity of liquids, such as new and in-service lubricating oils, by means of an oscillating piston viscometer. 1.2 This test method is applicable to Newtonian and non-Newtonian liquids; however the precision statement was developed using Newtonian liquids. 1.3 The range of dynamic viscosity covered by this test method is from 0.2 mPa·s to 20 000 mPa·s (which is approximately the kinematic viscosity range of 0.2 mm 2 /s to 22 000 mm 2 /s for new oils) in the temperature range between –40 °C to 190 °C; however the precision has been determined only for new and used oils in the range of 34 mPa·s to 1150 mPa·s at 40 °C, 5.7 mPa·s to 131 mPa·s at 100 °C, and 46.5 mm 2 /s to 436 mm 2 /s at 40 °C. 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. 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 Many petroleum products, as well as non-petroleum materials, are used as lubricants for bearings, gears, compressor cylinders, hydraulic equipment, etc. Proper operation of this equipment depends upon the viscosity of these liquids. 5.2 Oscillating piston viscometers allow viscosity measurement of a broad range of materials including transparent, translucent and opaque liquids. The measurement principle and stainless steel construction makes the Oscillating Piston Viscometer resistant to damage and suitable for portable operations. The measurement itself is automatic and does not require an operator to time the oscillation of the piston. The electromagnetically driven piston mixes the sample while under test. The instrument requires a sample volume of less than 5 mL and typical solvent volume of less than 10 mL which minimizes cleanup effort and waste.