Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test Ingestion-build-117251 or to a combination of

or to a combination of these

BS EN 1176‑1 is the first part of the BS EN 1176 multi-series that specifies general safety requirements for permanently installed public playground equipment and surfacing

as well as livestock

This Technical Specification is not applicable to the hazards of static electricity relating to lightning or to damage to electronic components

BS EN 1173 on material condition designation applies to:

Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test Ingestion-build-117251 or to a combination of1 Scope This International Standard specifies a method for the determination of the elimination and the biodegradability of organic compounds by aerobic micro organisms. The conditions described simulate a waste water treatment plant. Two test systems can be used: activated sludge plants or porous pots. The tests can optionally be performed under conditions of nitrification and denitrification (Annex A) and coupling of the units (Annex B). The method