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RRA - Refrigerant Risk Assessment « if-refrigeration
(Klikken: 97;website toegevoegd: Apr 7, 2015, if-refrigeration)
Detector Tubes make use of a chemical reaction between the target gas and a chemical, contained in a tube and dispersed over an inert adsorbent, e.g. silica gel. This reaction causes a characteristic colour change, which is a measure of the concentrat
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