000			00325nam a2200133 4500
027			_aCS 161 : 1972 _q1972
041			_aeng
080			_a666.32
942			_cSD
110			_aBUREAU OF CEYLON STANDARDS
245			_aCS 161 : 1972 : Specification for china clay for ceramic industry
300			_a23p.
500			_aSTD2377
999			_c177911 _d177911