GB/T 20220-2006
ActivePlastics - Film and sheeting - Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness)
塑料薄膜和薄片 样品平均厚度，卷平均厚度及单位质量面积的测定 称量法（称量厚度）
Application Summary AI generated
This standard specifies a gravimetric method for determining the average thickness of plastic film and sheeting samples, as well as the average thickness and yield (area per unit mass) of a roll. It is applied in quality control and material testing within the rubber and plastics industry, particularly for thin, flexible materials where mechanical thickness gauges may be inaccurate due to compressibility or surface texture. The method is used to verify product specifications and ensure consistency in manufacturing processes.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.