00291nam a2200097Ia 4500008004100000082002100041100002300062245005100085260004900136300000800185140113s9999    xx            000 0 und d  a542.1:614.8   M1  a"Bretherick, L., "  aHazards in the chemical laboratory 3rd edition  a1981bThe Royal Society of ChemistrycLondon  a567