European Communities (Gas Volume Meters) Regulations, 1979.
Statutory Instruments
Source: Statutory Instruments

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paragraphs: These Regulations may be cited as the European Communities (Gas Volume Meters) Regulations, 1979.
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paragraphs: The European Communities (Measuring Instruments) (Amendment) Regulations, 1975 ( S.I. No. 199 of 1975 ), are hereby amended by the substitution of the following Regulation for Regulation 3:
"3. Applications for EEC pattern approval of gas volume meters shall be subject to the provisions of the Annex to Council Directive No. 71/318/EEC of 26 July 1971,2 as amended by the Commission Directive No. 74/331/EEC of 12 June 19743 and Commission Directive No. 78/365/EEC of 31 March 1978."
2OJ L 202/21 6 September, 1971.
3OJ L 189/9 12 July, 1974.
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paragraphs: Schedule 6 of the European Communities (Measuring Instruments) Regulations, 1973 ( S.I. No. 67 of 1973 ), is hereby amended—
(a) BY THE SUBSTITUTION FOR PARAGRAPH 3 OF CHAPTER I. B. OF THE FOLLOWING PARAGRAPH:
"3. Additional devices
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paragraphs: 1 Gas volume meters may be fitted with:
( a ) prepayment devices;
( b ) integral pulse generators the outlets of which must bear an indication of the value of one pulse in the form
'1 imp ^ . . . m3 (or dm3)' or
'1 m3 ^ . . . imp'.
These additional devices, where fitted, are regarded as forming an integral part of the meter; they should be connected to the gas volume meter at the time of EEC initial verification. There are no separate requirements regarding their effects on the measuring properties of the meters.
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paragraphs: 2 Gas meters may be fitted with output drive shafts which would be taken to include drive shafts or other facilities for operating detachable additional devices. The torque which the gas meters are required to produce in order to drive the additional devices fitted must not bring about any changes in the meter indication greater than the values specified in Chapters II.5.2.1 and III.5.2.1.
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paragraphs: 2.1 If there is only one drive shaft, it must be characterised by an indication of its constant in the form '1 tr ^ . . . m3 (or dm3)', of the maximum permissible torque in the form 'Max = . . . N.mm' and of the direction of rotation.
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paragraphs: 2.2 If there are several drive shafts, each shaft must be characterised by the letter M with subscript in the form 'M1; M2; . . . Mn', as well as by an indication of its constant in the form 1 tr ^ . . . m3 (or dm3)' and of the direction of rotation.
The following formula must appear on the meter, preferably on the data place:
k1 M1 + k2 M2 + . . . + kn Mn ≤ £ A N.mm.
in which:
A represents the numerical value of the maximum permissible torque applied to the drive shaft with the highest constant, where the torque is applied only to this shaft; this shaft must be characterised by the letter M1;
Ki (i = 1; 2; . . . n) represents a numerical value determined as follows:
Ki =
Mi (i = 1; 2; . . . n) represents the torque applied to the drive shaft characterised by the letter Mi;
Ci (i = 1; 2; . . . n) represents the constant for the drive shaft characterised by the letter Mi.
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paragraphs: 2.3 The extremity of the drive shafts must be protected by means of a sealed cap or by means of a sealed connection between any additional device and the meter.
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paragraphs: 2.4 The connection between the measuring device and the intermediate gearing must not be broken or altered if a torque equal to three times the permissible torque as laid down in Chapters 1.B.3.2.1 and 1.B.3.2.2 is applied."
(b) BY THE SUBSTITUTION FOR SUBPARAGRAPH 4.1 OF PARAGRAPH 4 OF THE SAID CHAPTER 1.B. OF THE FOLLOWING SUBPARAGRAPH:
"4. Inscriptions
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paragraphs: 1 Each meter must bear the following inscriptions, either on the dial plate or on a special data plate or divided between the two:
( a ) the EEC pattern-approval mark;
( b ) the identification mark or name of the manufacturer;
( c ) the number and year of manufacture of the meter;
( d ) the size designation of the meter; this has the form of a capital G followed by a number which is laid down in Chapter II or III;
( e ) the maximum flow as Qmax = . . . m3/h;
( f ) the minimum flow expressed as: Qmin = . . . m3/h (or dm3/h);
( g ) the maximum operating pressure expressed as:
Pmax . . . MPa (or kPa or Pa or bar or mbar);
( h ) for volumetric meters, the nominal value of the cyclic volume expressed as: V . . . m3 (or dm3);
( i ) where appropriate, the inscriptions mentioned in Chapters I.B.3.1. and I.B.3.2; these inscriptions may, however, be made on other plates or on the meter itself.
These inscriptions must be clearly visible, easily legible and indelible under the normal conditions of use of the meter."
(c) BY THE SUBSTITUTION FOR CLAUSE 3 OF SUBPARAGRAPH 2 OF PARAGRAPH 8 OF THE SAID CHAPTER I. B. OF THE FOLLOWING CLAUSE:
"8.2.3 Locations should be provided for verification marks or seals: