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Title: Plastic Meter Parts - How They Are Doing
Author: G. S. Verra
Source: 1982 Appalachian Gas Measurement Short Course
Year Published: 1982
Abstract: How are plastic meter parts doing? The answer to that question is well, but not perfect. The inclusion of plastics in meters Isapartof an increasing use of plastics in a wide variety of manufactured goods. Let us first look at the use of plastics in general. The term plastic actually refers to a very wide variety of materials of varying characteristics. Over the last two decades, plastics have greatly increased in number, quality, and use. The techniques used in design and select plastic materials have developed so that the different characteristics of plastics are accounted for-such characteristics as creep, environmental stress crack resistance, thermal expansion and contraction, ultraviolet degradation, and resistance to softening when in contact with various chemical agents. The development of engineering techniques, improved plastics, and more complete information about the performance of those plastics has led to a rapid expansion in their use. Their use in gas meters, particularly the changes in the last decade, is a good example of that expansion. In gas meters, the plastic parts used are made from materials that have specific definable characteristics and have been engineered to perform in the environment and under the conditions of anticipated operation. In this report, I plan to review some of the significant changes that have been made and discuss how well the plastics have performed.

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