They are air, calcium chloride brine, sodium chloride brine, alcohol, and similar nonfreezing solutions. The purpose of Class 2 refrigerants is to receive a reduction of temperature from Class 1 refrigerants and convey this lower temperature to the area to be air-conditioned.
Elections for the United States Senate will be held on November 8, 2016, with 34 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3, 2017 until January 3, 2023.
Thirty-three Class 2 seats in the 100-member United States Senate were up for election, in addition to three Class 3 seats due to expire on January 3, 2017. The candidates winning the regular elections will serve six-year terms from January 3, 2015 to January 3, 2021.