Water quality. Determination of selected parameters by discrete analysis systems - Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection1 Scope This part of ISO 15923 specifies methods for the automatic performance of spectrophotometric and turbidimetric analyses with a discrete analysis system for determining ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate, and silicate. The field of application is ground, potable, surface, waste, eluates, and boiler water.

Optimization of the variety of products and services

The range of valves covered by BS 5353 is given in Table 1

By adopting BS EN 3894

BS EN 50083-9 specifies the transfer of DVB/MPEG-2 data signals in the standardized transport layer format between devices of different signal processing functions

Appendix A gives a guideline regarding the EMC Directive 89/336/EEC

Locations which are characterised by being supplied directly at low voltage from the public mains network are considered to be residential

BS 5866-2 helps public sector purchasing authorities to supply standard patterns which cover these properties of cotton leno cellular blankets and thereby serve to resolve any ambiguities of description

and sulphur in coal and coke ash

5: The IEC 61000-4-22 has been introduced as an alternative method for testing radiated immunity

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