{"product_id":"palintest-photometer-25xstrips-bromine-tabs-photo-ap060","title":"Palintest Photometer 25xSTRIPS BROMINE TABS-PHOTO - AP060","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e25xSTRIPS BROMINE TABS-PHOTO - AP060\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBROMINE TEST FOR FREE, COMBINED AND TOTAL BROMINE IN WATER Bromine and bromine-release compounds are used for the disinfection of swimming pool water, and in many other water treatment systems. Accurate measurement of the bromine residual is an essential aspect of control of these processes. The bromine level can be expressed in terms of the free bromine, combined bromine or total bromine residuals. However free and combined bromine are both considered powerful disinfectants and it is not normally necessary to differentiate between these two forms. For the majority of applications therefore the measurement of the total residual is sufficient. The Palintest DPD bromine method provides a simple means of measuring bromine residuals over the range 0 - 10.0 mg\/l. A supplementary procedure can be used to differentiate between free and combined bromine if desired. Method The Palintest bromine test uses the DPD method now internationally recognised as the standard method of testing for disinfectant residuals. In the DPD method the reagents are provided in tablet form for maximum convenience and simplicity of use. Bromine reacts with diethyl-p-phenylene diamine (DPD) in buffered solution to produce a pink coloration. The intensity of the colour is proportional to the total bromine concentration and is measured using a Palintest Photometer. For the separate determination of free and combined bromine, a supplementary procedure using sodium nitrite is used. The nitrite destroys the free bromine in the sample and the colour produced in the DPD test then corresponds to the combined bromine only. The free bromine content is thus obtained by difference between the total bromine and combined bromine results. Reagents and Equipment Palintest DPD No 1 Clear Tablets Palintest DPD Nitrite Tablets Palintest Automatic Wavelength Selection Photometer Round Test Tubes, 10 ml glass (PT 595)\u003c\/p\u003e","brand":"Palintest","offers":[{"title":"Default Title","offer_id":50508776079422,"sku":"AP060","price":88.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0184\/0843\/9872\/files\/6878c17a-e81b-420a-a226-ed4c0db4a15a.png?v=1789959766","url":"https:\/\/www.aquatune.net.au\/products\/palintest-photometer-25xstrips-bromine-tabs-photo-ap060","provider":"Aquatune","version":"1.0","type":"link"}