In addition, the authors make recommendations for core functions in public health assessment, policy development, and service assurances, and identify the level of government--federal, state, and local--at which these functions would best be handled.
The live resin is made by either a BHO (butane) or CO2 extraction process in a closed-loop method, then solvents are purged by low-heat oven over several hours to days.
Plastic resins are made by heating hydrocarbons. There are many types of plastic resin, and the appropriate one is selected to make the particular type of product needed. Some plastics are filled with products that are hot when packaged, such as those used in some food plants.