Water quality. Determination of inhibition of gas production of anaerobic bacteria - General test Ingestion-build-276583 Note: ISO 22477‑5 does not

Note: ISO 22477‑5 does not provide specifications for the size of the proof load and the limiting criteria

a part of the BS 4875 series

— flail mowers

BS 7407:1991 specifies requirements for vehicles

Water quality. Determination of inhibition of gas production of anaerobic bacteria - General test Ingestion-build-276583 Note: ISO 22477‑5 does not1 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 the anaerobic digestion of sewage sludge over periods of up to 3 days. The growth rate of anaerobic bacteria is much lower compared with that of aerobic