What is ISO 9110-1 about?
ISO 9110 is a series on hydraulic fluid power. A hydraulic fluid power system has a pump driven by a prime mover (such as an electric motor or internal combustion engine) that converts mechanical energy into fluid energy. ISO 9110-1 establishes general principles for the measurement of performance parameters under static or steady-state conditions.
BS ISO 9110-1 provides guidance on the sources and magnitudes of uncertainty to be expected in the calibration of and measurements using hydraulic fluid power components. ISO 9110-1 describes practical requirements for assessing the capability of the measuring system, and hence the level of uncertainty of the measurement system, or for assisting in developing a system that will meet a prescribed level of uncertainty. ISO 9110-1 is intended to be used in conjunction with others that address the measurement of specific physical parameters: flow, pressure, torque, speed, and temperature.
Who is ISO 9110-1 for?
ISO 9110-1 on hydraulic fluid power is useful for:
- Fluid power equipment manufacturers
- Design engineers
- Research and development facilities
Why should you use ISO 9110-1?
A fundamental aspect of hydraulic fluid power technology is the need to quantify the performance characteristics of hydraulic components and systems to provide a basis for action or decision-making. The method of measurement used is capable of reliably determining such performance characteristics. ISO 9110-1 provides guidance for identifying uncertainty sources and magnitudes in the calibration of instruments and their use in measurement situations encountered in hydraulic fluid power testing. Methods are described for assessing the uncertainty in measurements and derived results.
The value of a measurement is dictated by the use that will be made of it, as well as the circumstance. Therefore, the maximum value of a reported measure can only be realized if it can be applied under many different circumstances, requiring that the uncertainty associated with a measure be assessed and reported. Using ISO 9110-1 general principles for the measurement of performance parameters under static or steady-state conditions can be established.
What’s changed since the last update?
BS ISO 9110-1:2020 supersedes BS ISO 9110-1:1990. BS ISO 9110-1:2020 includes some technical changes with respect to BS ISO 9110-1:1990. These include:
- New normative and informative references have been added
- New definitions have been added
- Classes of accuracy to measurement have been renamed
- Assessment of uncertainties has been revised and expanded and general measurement considerations and requirements have been renamed
- Guidance on gravity correction has been added
