# The Measuring Instruments Regulations 2016, Paragraph 1


The flowrate range of the water.
The values for the flowrate range shall fulfil the following conditions:
Q3/Q1 ≥ 40
Q2/Q1 = 1.6
Q4/Q3 = 1.25

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Source: https://www.legislation.gov.uk/uksi/2016/1153/schedule/1C/paragraph/1 (the official version)
Page: https://openlegislation.uk/measuring-instruments-regulations-2016/schedule-1C/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.