Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 22 стр.
Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 20 стр.
Domestic appliances used for drinking water treatment not connected to water supply. Jug water filter systems. Safety and performance requirements, labeling and information to be supplied— 38 стр.
Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 20 стр.