000 00351nam a2200133Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _aMethod for identification of rubbers
260 _aLondon
260 _c1967
_bBSI
490 _aBritish standards
500 _aStandard number: BS 4181
650 _aRubber, identification methods
942 _cST
999 _c73084
_d73084