Hydrometry. Water level measuring devices1 Scope This International Standard specifies the functional requirements of instrumentation for measuring the level of water surface (stage), primarily for the purpose of determining flow rates. This International Standard is supplemented by an annex providing guidance on the types of water level measurement devices currently available and the measurement uncertainty associated with them (see Annex A).

The selection of incorrect sensing technologies leads to incidents not being detected or an increase in spurious trips

quality assessment procedures

4 - Transit time method about

Note: Acoustic

It serves for a consistent language use concerning the designation and characterization of enamelling defects

Other titles in the PAS 1188 series:

This part of ISO 11148 specifies safety requirements for hand-held non-electric power tools (hereinafter “nibblers and shears”) with a reciprocating movement for nibbling and shearing

BS EN 197-1 is the European standard that defines and gives the specifications of 27 distinct common cements

BS ISO 19444-1:2019 includes some technical changes with respect to BS ISO 194441:2016

— breakstem lockbolt tools

which has been explicitly requested by ISO/TC 28 at the time of revision of EN 14517 and was agreed to result in the parallel Standard EN ISO 22854 [3]

1 Instrument identification