Measurement of fluid flow in closed conduits. Guidelines on the effects of flow pulsations on flow-measurement instruments1 Scope This document defines pulsating flow, compares it with steady flow, indicates how it can be detected, and describes the effects it has on orifice plates, nozzles or Venturi tubes, turbine and vortex flowmeters when these devices are being used to measure fluid flow in a pipe. These particular flowmeter types feature in this document because they are amongst those types most susceptible to pulsation effects. Methods for correcting the flowmeter

transducer calibration

— water-insoluble chemicals that are being studied as active insecticides

edge seals or spacers) will allow the insulating glass unit to conform to the requirements given in EN 1279-1:2018

This document specifies the requirements and performance test procedures for monostatic heterodyne continuous-wave (CW) Doppler lidar techniques and presents their advantages and limitations

greater efficiency and opportunities for continual improvement

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compressed gas or another activating type

BS EN 997 provides constructional and performance characteristics together with test methods for close-coupled suites

seamless tube

improving the retention system effectiveness

the wheelchair requires additional mechanisms and mechanical structures to allow these features to operate

This helps in determining the characteristics of bio-based products and is useful in maintaining the transparency of these products