These Charts show the thermal deformation temperature and the softening temperature (called the âVicat softening temperatureâ) of major plastics. The heat distortion temperature is the temperature when the test piece placed in the heat medium with bending load applied reaches a specified deflection as temperature rises. The Vicat softening temperature is defined as the temperature where the needle shaped penetrator sinks into the test piece to a specified depth as temperature of the heating medium rises and specified vertical load is applied to the test piece.
Puerto Rico is a territory (Commonwealth) of the United States of America and Puerto Ricans have common citizenship, currency and defense. Although Puerto Ricans are U.S. citizens, residents of Puerto Rico pay no federal income tax, nor can they vote in presidential elections.
Puerto Rico is a self-governing commonwealth in association with the United States. The chief of state is the President of the United States of America. The head of government is an elected Governor. There are two legislative chambers: the House of Representatives, 51 seats, and the Senate, 27 seats.n addition, each of the municipalites of Puerto Rico have city flags that represent what each city stands for. Chief of State: President of the United States. Head of Government: Governor, elected by the voters to a four-year term.