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 The prediction of the ageing

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

In ISO 21219‑3

BS EN 2240-016 provides you with dimensions

BS EN 417 on non refillable metallic gas cartridges is useful for:

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 The prediction of the ageing1 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