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.
The free enterprise system is built on the idea that individual people have the right to run businesses to make a profit with limited government interference and regulation. T â¦ he above is only partly true. The essence of the free enterprise system is a competitive market which anyone can enter. Government interference and regulation can protect free enterprise, e.g. American anti-trust legislation which was designed to prevent the market from being monopolized by giant corporations who keep on merging to prevent any attempts at competition.