000 00284nam a2200121Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _aRubber- Determination of ash.
260 _c1976
500 _aStandard number: ISO 247
650 _a Ash
650 _a Raw rubber
942 _cST
999 _c74096
_d74096