Water quality. Determination of turbidity - Quantitative methodsWhat is this standard about? This part of ISO 7027 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water: a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water); b) turbidimetry, procedure for measurement of the attenuation of a radiant flux, more applicable to highly turbid waters (for example waste waters

It provides a framework for and details the development of water use calculation methodologies in non-domestic buildings

Further reading

natural stone

BS 5459-2 specifies performance requirements and test methods for the structural safety and stability of office pedestal seating when used by persons weighing up to 150 kg

Scale effect on specific hydraulic energy losses of axial flow machines [10]

BS EN 1717 specifies the minimum requirements for product standards of protection units

BS EN 50470‑1 on electricity metering equipment is useful for:

ongoing management and review 24

Child-resistant non-reclosable packaging for pharmaceutical products

“MADES” (Market Data Exchange Standard) is the acronym to designate BS EN IEC 62325‑503

Contents of BS EN 2954-001:

and footnotes were modified