Ammonia/1N Tablet

Photometric test for Ammonia in groundwater, drinking water, seawater, and wastewater

Colour Change

Colourless to Yellow to Green

Range:

0 - 1 mg/L N

Technical Resource:

Ammonia 1N Indophenol Test Method, Technical Information

Notes:

Brackish samples may only require a single spoonful of conditioning reagent to prevent turbidity forming

Low temperatures will slow the rate of colour development. Therefore, if the sample temperature is below 20°C, allow 15 minutes for the colour to develop

Fill to the 10 mL line with sample.

For seawater samples only, add two spoonfuls of Ammonia Conditioning reagent and mix well. Otherwise skip this step.

Use this to "blank" the instrument. Place in cell holder and press Blank.

Prepare sample by adding an Ammonia No1 tablet and an Ammonia No2 tablet. Crush both tablets and stir.

Place in the cell holder and press Measure.

Allow timer to count down 10 minutes. The concentration of Ammonia will then be displayed. Note: Check full test instructions if sample is below 20⁰C.