🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BSI 21/30396472 DC:2021 Edition

BSI 21/30396472 DC:2021 Edition

$13.70

BS ISO 23695. Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube method

Published By Publication Date Number of Pages
BSI 2021 18
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies a method for the determination of ammonium nitrogen (NH4-N) in drinking water, groundwater, surface water, wastewater, bathing water and mineral water using the small-scale sealed tube method. The result can be expressed as NH4 or NH3 or NH3 or NH3-N.

This method is applicable to (NH4-N) concentration ranges from 0,01 mg/l to 1 800 mg/l of NH4-N. The measuring ranges of concentration can vary depending on the type of small-scale sealed tube method of different manufacturers. Concentrations even slightly higher than the upper limit indicated in the manufacturers manual relating to the small-scale sealed tube method used, cannot be reported as accurate results. Appropriate preliminary dilution of the sample shall be performed or a small-scale sealed-tube method with a different application measuring range shall be used.

All manufacturers’ methods are based on the Berthelot reaction and its modifications to develop indophenol blue colour. Reagents mixtures could differ slightly based on manufacturers small-scale sealed tube method, see Clause 8. This method is applicable to direct determination of samples by using small-scale sealed tubes for the determination of drinking water, groundwater, surface water, wastewater and on preserved samples. The method is applicable after separation of suspended materials by filtration.

Related products

BSI 21/30396472 DC
$13.70