Environmental Testing Instruments

Applications :
The apparatus is suitable for producing Nh3 in the air stream for air pollution studies. Ammonia is produced from liquor ammonia maintained at constant temperature in diffusion cell maintained in a thermostatic dry bath. The away ammonia gas released from the diffusion eel sweeps away ammonia gas released from the liquor ammonia. By changing the airflow rate the ammonia output is controlled.

Applications :
HF gas generator is developed to generate volatile fluorides or HF gas from dilute hydrofluoric acid for exposing living and non- living-things for exposure tests. HF solutions are kept in a plastic container having diffusion cap and the entire assembly is, maintained at constant temperature. Filterea air at controlled rate is bubbled through HF solution which needle valve regulates the concentration of HF gas in outlet. The gas generator works on 220 V AC mains.

Nox Generator is designed for producing regulated quantity of the Oxides of Nitrogen mixed in air stream for air polution studiesJhe gas is produced by dissociation of Nitric acid into Oxides of nitrogen (NOx). The NOx generation system consists of glass vessel mounted in a dry bath, mini diaphragm pump to teed air. rotameter with controler to regulate air (low through glass vessel and photochemical reactor for the on line break down of N205 onto oxides of Nitrogen. Photochemical reactor is equipped w mini UV lamp. The NOx generator works on AC mains.

Handy, battery powered light weight instrument designed for indoor and outdoor air sampling to assess the levels of atmospheric pollution. The instrument is suitable for sampling gases such as S02. No, Fluorides, ozone, NH, CO, C02 etc., and suspended particles or dust. In class - room teaching it is used to demonstrate the methods of gas sampling and efficiency of various absorbing reagents for different flow rates and gases. Being self contained and portable, gas samples can be easily taken from any location, such as underground mines, cinema hals, road sides, working areas and sheds of chemical plants, remote forests any hilly areas and other places interest.

Optional
Filter Disc Holder.
Glass of impinger.