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

BS EN 14934:2007 describes product characteristics and includes procedures for testing

and surface texture range

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

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