The number of semester credit hours required for an associate degree depends on the college and degree program. In general, an associate degree takes two years full time and represents half the work required for a bachelor's degree.
A dekatherm (dth) is a unit of energy used primarily to measure natural gas, developed in about 1972 by the Texas Eastern Transmission Corporation, a natural gas pipeline company. It is equal to 10 therms or 1,000,000 British thermal units (MMBtu).
The combination of the carrier gas and the sample gas is called the. moving phase. The carrier gas is a gas which is not a component of. interest (it is not being measured) and acts as a background gas that. permits the easy detection of the components being measured.