# The Gas (Meters) (Amendment) Regulations 1993, Regulation 4


(1) In regulation 3(1) of the Principal Regulations (prescribed standards for meters)—
(a) in sub-paragraph (c), after the words “a meter other than a diaphragm meter,” there shall be inserted the words, “where that meter is designed for a maximum rate of flow exceeding 10 cubic metres per hour,”;
(b) the following sub-paragraph shall be inserted after sub-paragraph (c)—
“(cc) in the case of a meter other than a diaphragm meter, where that meter is designed for a maximum rate of flow which does not exceed 10 cubic metres per hour, the meter, when used for the purpose of ascertaining the quantity of gas or air passing through it—
(i) at any rate of flow not less than
175th of the greatest rate of flow for which it is designed and not more than the greatest rate of flow for which it is designed, will register such quantity of gas or air as does not differ from the actual quantity of gas or air passing through the meter by more than 2 per cent of that actual quantity; and
(ii) at any rate of flow less than
175th of the greatest rate of flow for which it is designed and not less than
1150th of the greatest rate of flow for which it is designed, will register such quantity of gas or air as does not differ from the actual quantity of gas or air passing through the meter by more than 3 per cent of that actual quantity;”.
(2) In regulation 3(2) of the Principal Regulations (deemed conformity with prescribed standards), in place of “or (c) above”, there shall be substituted “(c) or (cc) above”.

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Source: https://www.legislation.gov.uk/uksi/1993/1521/regulation/4 (the official version)
Page: https://openlegislation.uk/gas-meters-amendment-regulations-1993/regulation-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.