Regulation 2 Interpretation

“the 1985 Act” means the Weights and Measures Act 1985;

“accuracy class” means the accuracy class, in respect of an automatic rail-weighbridge, determined by the Secretary of State and specified in the certificate of approval, being one of the accuracy classes 0.2, 0.5, 1 or, for the purposes of weighing waste (as defined in Schedule 3) only, 2: provided always that, except when used for the purposes of weighing waste, the accuracy class in respect of that automatic rail-weighbridge may be different for wagon weighing to that for train weighing;

“automatic rail-weighbridge” means an instrument which—

1. (i)

   is used to determine the mass of a railway wagon when it is weighed in motion by using the action of gravity without the intervention of an operator;

2. (ii)

   follows a predetermined programme of automatic processes characteristic of the instrument; and

3. (iii)

   has one or more load receptors inclusive of rails for conveying railway vehicles and includes such of the other components described in Schedule 1 as are specified in the certificate of approval;

“certificate of approval” means a certificate of approval of a pattern of an automatic rail-weighbridge granted or renewed by the Secretary of State under section 12 of the 1985 Act;

“control instrument” means a non-automatic weighing instrument used to determine the mass of a reference wagon;

“initial verification testing” means testing in accordance with the provisions of regulation 6(c);

“instrument” has the same meaning as that for automatic rail-weighbridge;

“load receptor” means the part of the weigh zone that is intended to receive the load and which realises a change in the balance of the automatic rail-weighbridge when a load is placed upon it; and “multiple load receptors” means two or more load receptors placed in series or in parallel that are used as a single load receptor for weighing a wagon that is entirely supported on the load receptors;

“maximum capacity” means the largest load which the automatic rail-weighbridge is designed to weigh-in-motion before totalising;

“maximum wagon weight” means the largest in-motion load which the automatic rail-weighbridge is approved to weigh for a particular site;

“minimum capacity” means the load below which a weighing-in-motion result before totalising may be subject to an excessive relative error;

“minimum wagon weight” means the wagon weight (when the wagon is unloaded) below which a weighing-in-motion result may be subject to an excessive relative error;

“OIML R 106” means the International Recommendation OIML R 106 of the Organisation Internationale de Métrologie Légale relating to automatic rail-weighbridges (Edition 1997 (E));

“prescribed limits of error” has the meaning set out in regulation 9(3);

“reference wagon” means a railway goods vehicle that is recognised by the automatic rail-weighbridge as a vehicle to be weighed being—

1. (a)

   of known weight;

2. (b)

   typical of those to be used for weighing on the automatic rail-weighbridge;

and which has been selected for the purposes of in-motion testing;

“scale interval” or “d” means a value expressed in units of mass for weighing-in-motion that is the difference between—

1. (a)

   the values corresponding to two consecutive scale marks for analogue indication; or

2. (b)

   two consecutive indicated or printed values for digital indication;

“scale interval for stationary load” means the scale interval used for static tests;

“the stamp” or “verification mark” means the prescribed stamp M1;

“total train” means a number of coupled wagons whose totalised weight is to be obtained;

“wagon” means a loaded or unloaded railway goods vehicle that is recognised by the automatic rail-weighbridge as a vehicle to be weighed;

“weighing-in-motion” means weighing objects that are in motion; and

“weigh zone” means the zone in which a wagon must be located when it is to be weighed.