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 an archipelago that includes the main island of Puerto Rico and a number of smaller islands. The capital and largest city is San Juan. The territory does not observe daylight saving time, and its official languages are Spanish, which is predominant, and English.rom the Spanish, Puerto Rico received the Spanish language, the Catholic religion and the vast majority of their cultural and moral values and traditions. The United States added English language influence, the university system and the adoption of some holidays and practices.