00289nam a2200073Ia 4500008004100000082003200041245011300073260002900186220204s9999    xx            000 0 und d  aNR:62(083.7)AST1976bANN.37 0a1976 Annual book of ASTM standards. Part 37. Rubber, natural and synthetic General test methods carbon black  aPhiladelphiabASTMc1976