National Standards) Rules, 2011
The Legal Metrology (National Standards) Rules, 2011 NOTIFICATION New Delhi, the ...........2010 G.S.R. (E) - In exercise of the powers conferred by sub-section (1) read with clauses (a), (b), (d) and (e) of sub-section (2) of section 52 of the Legal Metrology Act, 2009 (1 of 2010), the Central Government hereby makes the following rules, namely:- CHAPTER 1 PRELIMINARY 1. Short title and commencement- (1) These rules may be called the Legal Metrology (National Standards) Rules, 2011. (2) They shall come into force on the 1st day of March, 2011. 2. Definitions- In these rules, unless the context otherwise requires:- (a) “Act” means the Legal Metrology Act, 2009 (1 of 2010); (b) “co-efficient” means those parameters without physical dimension or ratios of quantities of the same kind, which are necessary for particular measurements or for characterising properties of substances or mixtures of certain substances; ILLUSTRATION: Degree of alcoholic strength, percentage of Sugar and hardness of materials, are examples of co-efficients. (c) “derived units” means units, expressed algebraically in terms of base units, or in terms of base and supplementary units of weights or measures, by means of mathematical symbols of multiplication or division, or both. Explanation I.- Derived units having special names and symbols (such as 'Newton', with symbol 'N') may, by themselves, be used to express other derived units in a simpler way than in terms of the base units of weights and measures. Explanation II.- The values of dimensionless quantities (such as, refractive index, specific gravity, relative permeability or relative permittivity) are expressed by numbers.
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