Dysgeusia (/dÉªsËÉ¡uËÊÉ/ or /dÉªsËÉ¡juËziÉ/) or parageusia is a distortion of the sense of taste. Dysgeusia is also often associated with ageusia, which is the complete lack of taste, and hypogeusia, which is the decrease in taste sensitivity. An alteration in taste or smell may be a secondary process in various disease states, or it may be the primary symptom.
There are two main types of plastics â. Thermoplastics which are softened by heat and can be moulded. (Injection moulded, blow moulded or vacuum formed). Good examples are acrylic, polypropylene, polystyrene, polythene and PVC. Thermosets which are formed by ha heat process but are then set (like concrete) and cannot change shape by reheating.
Plastic or PVC pipes. There are 3 common types of plastic pipes are available in market, as given below. 1  Unplasticized PVC (UPVC) or rigid pipes for use with cold water. 2  Plasticized PVC pipes which are plasticized with addition of rubber. 3  Chlorinated PVC (CPVC) pipes which can withstand higher temperatures upto 120 0 (used to carry hot water).