The loss of mass of an article or test sample as a result of exposure to particular conditions as, for example, a few hours a 90°C in a vacuum oven, or two years outdoors on a weathering panel, often expressed as a percentage of the original mass. See also Volatiles Content, which may be the same as weight loss when the latter is due exclusively to loss of volatiles.
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Gooch, J.W. (2011). Weight Loss. In: Gooch, J.W. (eds) Encyclopedic Dictionary of Polymers. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6247-8_12772
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