Wastewater treatment plants - Biological fixed-film reactors1 Scope This European Standard specifies the design principles and performance requirements for secondary treatment by biological fixed film reactors at wastewater treatment plants for more than 50 PT. The primary application is for wastewater treatment plants designed for the treatment of domestic and municipal wastewater. Biological fixed film reactors include biological trickling filters, rotating biological contactors, submerged bed reactors and

Why should you use BS 3970-1 -  Specification for general requirements of sterilizing and disinfecting equipment

PD CEN/TR 17370 on OpRa is a CEN initiative with a focus on the identification of public transport raw data to be exchanged

BS EN 2084 on electrical cables (single and multicore) for aerospace applications is applicable to:

and termination applications

This part of IEC 61000 is concerned with conducted electromagnetic phenomena (disturbances and signals from mains communicating systems) in the frequency range from 0 kHz to 150 kHz

Construction specification for 1000 mm x 1200 mm flat wooden pallets

Hence BS EN 4174 walks you through the characteristics of swage collars

for use by one person

Note: the standard specifies there are defined access positions at ground level or on the chassis to get on and off the platforms and assumes that those operating MEWPs are adequately trained

The loudspeakers have been classified in either an indoor or an outdoor application environment category

It also draws attention to case management procedures

wire nails