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 What is BS EN 4644-014

What is BS EN 4644-014 - Receptacle size 1

in order to better fit in the modular structure given in EN ISO 52000-1

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

In ISO 21219‑3

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 What is BS EN 4644-0141 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