microbiological tests of aluminium rolling water-oil emulsion reveal high level of contamination : relatively anaerobic bacteria 10 ( 6 ) -10 ( 8 ) cells/ml , fungi and yeasts 10 ( 3 ) -10 ( 4 ) cells/ml , and also anaerobic bacteria desulfovibrie sp . reducing sulfates to hydrogen sulfide .
C0016832
fungi
C0043393
yeasts