Canada uses the Canadian Standards Association (CSA) standards which closely mirror the ASTM standards. Many countries have adopted the ISO standards for PE-RT products around the world but in the United States the American Society of Testing and Materials (ASTM) standards are utilized. PolyEthylene – Raised Temperature (PE-RT) products were developed in Western Europe in the early 1980’s and since that time have evolved into the high performance products in use today as defined in the International Standards Organization (ISO) standards. The performance requirements for flexible polyolefin potable water piping systems in North America are quite different than those in other areas of the world.
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