Other standards detail the property and testing. requirements for gray and white iron castings, cast. iron pipe and fittings, and ductile iron castings. This volume also includes standards on. radiographic examination of castings to be used. with ASTMâs standard reference radiographs.
The free enterprise system in the United States developed soon  after the country gained its independence. This is a system that  allows people or entities to establish theiâ¦r own company, taking a  competitive stance with other businesses, and operate it for their  own profit.
Brief explanations are given for these characteristics of the market system: private property, freedom of enterprise and choice, the role of self-interest, competition, markets and prices, the reliance on technology and capital goods, specialization, use of money, and the active, but limited role of government.. Private property, coupled with the freedom to negotiate binding legal contracts, enables individuals and businesses to obtain, control, use, and dispose of this property. 2. Private property rights encourage investment, innovation, exchange of assets, maintenance of property, and economic growth.