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 territory of the United States. It became a U.S. territory in 1898, when it was acquired from Spain after the Spanish-American War. With approximately 3.5 million residents, Puerto Rico is the most highly populated of all United States territories.