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Status : Active
Standard Type : Main
Document No : ISO 20456:2017
Document Year : 2017
Pages : 30
Edition : 1
Section Volume : Velocity and mass methods (ISO/TC 30/SC 5.)
ISO 20456:2017 is not applicable to insertion-type flowmeters or electromagnetic flowmeters designed to work in open channels or pipes running partially full, nor does it apply to the measurement of magnetically permeable slurries or liquid metal applications.
ISO 20456:2017 does not specify safety requirements in relation to hazardous environmental usage of the flowmeter.