000 00427nam a2200133Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _aRaw natural rubber and natural rubber latex- Determination of nitrogen
260 _aSwitzerland
260 _c1974
_bInternational Organisation for Standards
490 _aISO
500 _aStandard number: ISO 1656
650 _aRubber, raw, natural- Nirogen determination
942 _cST
999 _c74036
_d74036