000 00389nam a2200145Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _aMethods for testing tar and bitumen: Determination of mineral matter (Ash).
260 _c1958
500 _aStandard number: IS 1217
650 _aAsh
650 _aBituminous materials
650 _aMineral matter
650 _aTar
942 _cST
999 _c73516
_d73516