Water quality. Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection LONG_TITLE Constant voltage transformers incorporating electronic

Constant voltage transformers incorporating electronic circuits are also covered by BS EN 61558-2-12

Why should you use BS EN 61754-30 - Fibre optic interconnecting devices and passive components

bulk materials

The prediction of the ageing of plastic materials is an important subject that concerns both users and manufacturers of materials

This Part 2-29 of EN 50290 gives specific requirements for Crosslinked Polyethylene (XLPE) compounds to be used for the insulation of instrumentation

Water quality. Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection LONG_TITLE Constant voltage transformers incorporating electronic1 Scope This International Standard specifies a method for the determination of nitrite(N) (see note 2), nitrate(N) or the sum of both [nitrite nitrate(N)], in various types of waters (such as ground, drinking, surface, and waste waters) in mass concentrations ranging from 0,01 mg l to 1 mg l for nitrite(N) and from 0,2 mg l to 20 mg l for nitrite nitrate(N), both in the undiluted sample. The range of application can be changed by varying the