 11 "ar 1961, bill no, u , 1 tile standards of weights and measures (amendment) bill, 1964 a billfurther to amend the stand4rds of weights and measures act, 1956 be it enacted by parliament in the fifteenth year of the republic of india as follows:-1 this act may be called the standards of weights and measures short (amendment) act, 1964 title s z in section 2 of the standards of weights and measures act, amendof 1956 1956 (hereinafter referred to as the principal act), for clause (d), ment of the following clause shall be substituted, namely: _ section 2 - (d) "metre" means the length equal to 1,650,76373 wavelengths, in vacuum, of the radiation corresponding to the transi-10 tion between the 2p and 5d, levels of the krypton atom of mass 86;' 3 in sub-section (2) of section 3 of the principal act, for the amendwords "in terms of the international proto-type of the metre", the ment ot words "by the international bureau of weights and measures" shall section 3 is be substituted 4 in sub-section (2) of section 5 of the principal act, for the amendfigures "1/31,556,925'975", the figures "1/31,556,925'9747" shall be ment of substituted section 5  5 after section 15 of the principal act, the following section shall be inserted, namely :-insertion of new section 15a "lsa; notwithstanding anything contained in this act, a nautical mile which is equal to 1852 metres, may be used as the unit of length in relation to navigation by sea or air" 5 unit of length in naviealion by sea or air lok sapha - '\ corrigendum , to the standards of weights and measures (amendment) bill, -1964 (to -be,!as dhtrod uced 1n l-ok sabbs) page 1, line 10,--for "2plf read "2p 0" 1 new dellii; march 13 1964 pha1guna 23, 1885 (sakaj  statement of objects and reasonsthe eleventh general intemational conference of weights and measu~s, held at paris in october, 1960, in which india participated, has recommended certain changes in the definitions of 'metre' and 'second' as given in the standards of weights and measures act, 1956 it is also' proposed to recognim 'nautical mile' as a unit of length in navigation by sea or air on the basis of international practice the bill is intended to give effect to these changes nbw delhi; manubhai shah the 24th february, 1964 (88 oj' 1866) - - - - - deflnitiodl 2 in this act, unless the context otherwise requires,-- - - - - - - (d) "metre" means the distance, at zero degree centigrade and under normal atmospheric pressure, between the axes of the two median lines traced on the platinum-iridium bar deposited at the international bureau of weights and measures and deelared international proto-type of the metre by the first general conference of weights and measures; - - - - - 3 (1) - - - - primary unit 01 lencth (2) for the purpose of deriving the value of the metre, the central government shall cause to be prepared a national prototype of the metre and shall cause the same to be certified in terms of the international proto-type of the metre and shall deposit the same in such custody and at such place as the cent11ll government may think fit - - - - - 5 (1) - - - - unit of time (2) a second means 1/31,556,925·975 of the length of the tropical year for 1900·0, the year commencing at 12·00 hours universal time on the 1st day of january, 1900  - - - - - - - - bill further to amend the standards of weights and measures act, 1956 (shri manubhai shah, minister oj interndtional trad8) 