รายละเอียดเอกสาร

This test method is used to determine the weight loss as a function of time of non-floating plastic materials (including formulation additives), when incubated under changing, open, marine aquarium conditions, which is representative of aquatic aerobic environments near the coasts and near the bottom of a body of water in the absence of sunlight, particularly UV and visible portions of the spectrum. The goal of this test is to obtain data that can be used to assess the potential for physical degradation of the test material. Such potential for physical degradation will be affected by real life environmental conditions. In particular this test method does not take into consideration the possible effects of solar irradiation. The aquarium-incubated plastic materials are examined for visual degradation and dry weight loss over time. This test does not provide information on ultimate biodegradation (that is, it is not a replacement for Test Method D6691), but it is an ASTM method for weight attrition. The standard addresses only weight loss as a function of time of the plastics materials in a marine environment and shall not be used for demonstrating ultimate biodegradation.

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