When commercially available hydrogen cars refuel at a hydrogen station, the cost is calculated based on the mass of the hydrogen gas measured by a flowmeter in the dispenser. However, unlike petroleum ...

The accuracy of the mass flow controller (MFC) is important to ensure the performance, quality, and efficiency of a flow meter. If an instrument is not calibrated, its performance can decline as a ...

In order to understand the benefits and drawbacks of the melt-flow-rate (MFR) test completely, it is essential to know something about how the test is carried out. The methodology is included in ASTM ...