TY - BOOK ED - ISO The International Organization for Standardization TI - ISO 11731-2 : 2004. Water quality : detection and enumeration of legionella. Direct membrane filtration method for waters with low bacterial counts U1 - REF 616.01 PY - 2004/// CY - Switzerland PB - ISO (The International Organization for Standardization KW - Microbiology KW - Legionella KW - Quality KW - Water KW - Bacterial Diseases ER -