000 00357nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aIndian Standards Institution
245 _aMethod for evaluating change in colour
260 _aNew Delhi
_c1956
300 _a0.666666667
440 _aIS-768; Indian Standards Inst
901 _a50577
942 _cB
_2udc
999 _c8960
_d8960