Water quality. Determination of inhibition of gas production of anaerobic bacteria - General test1 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

It specifies additional characteristics for such units

Professional equipment with input current ≤ 16 A per phase and that does not comply with the requirements and limits of standard IEC 61000-3-2 may be permitted to be connected to certain types of low voltage supplies

This contributes towards the safety of the passengers during travel

are subjected when stored

a signal transmitter is electrically isolated from a signal receiver

This part of ISO 15792 specifies the preparation and assessment of fillet weld test pieces for conformity assessment of positional usability and root penetration requirements for consumables classification standards for welding non-alloy and fine grain steels

Alteration and refurbishment

The digital channel load is represented by standard DVB-C signals

This standard does not deal with:

Knowledge management has no single accepted definition

Correction of Equations (1)

Manufacturers and suppliers of hexagonal slotted/castellated nuts