Water quality. Determination of inhibition of gas production of anaerobic bacteria - Test for low biomass concentrations not-for-sale BS EN 60439-4:1991

BS EN 60439-4:1991

or that are identified by “ISO 14343-B”

BS EN 60684-3-400 to 402 gives the requirements for three types of E-type glass sleeving using either braided or knitted construction

NOTE 1 EN 50163 specifies the a

The method specified under BS EN 16995 can be used for the analysis of mineral oil saturated hydrocarbons (MOSH) and/or mineral oil aromatic hydrocarbons (MOAH)

Water quality. Determination of inhibition of gas production of anaerobic bacteria - Test for low biomass concentrations not-for-sale BS EN 60439-4:19911 Scope This part of ISO 13641 specifies a screening method for assessing the potential toxicity of substances, mixtures, surface waters, groundwaters and wastewaters, effluents, sludges, or other environmental samples by determining the production of biogas (carbon dioxide and methane) from muds, sediments and other anaerobic environments with low biomass concentration. The growth rate of anaerobic bacteria is much lower, compared with that of