T/SSPI 003-2024 Rapid Detection Method for Biodegradable Plastic Products by Infrared Spectroscopy

Scope

Scope: This document describes the terms and definitions, principles, testing process, and inspection reports for the qualitative identification of biodegradable plastic products using infrared spectroscopy. This document is applicable to the qualitative identification of the biodegradability of plastic products. Method B is not applicable to the qualitative identification of the biodegradability of black plastic products. This document is not applicable to the arbitration testing of the biodegradability of plastic products. Main technical content: Method A: Fourier transform infrared spectroscopy. If the infrared spectrum of the sample is consistent with the spectrum of a known biodegradable plastic, it is determined that the material of the sample is a biodegradable plastic; if the infrared spectrum of the sample is consistent with the spectrum of a known non-biodegradable plastic, it is determined that the material of the sample is a non-biodegradable plastic; otherwise, the sample is determined to be a suspicious sample, and it can be further tested and confirmed by other methods. Method B: Near-infrared spectroscopy. The sample is processed and tested in accordance with 5.3.2.1 and 5.3.2.2, and the sample is analyzed based on the established model, and the determination results are directly output. The determination results are described as biodegradable samples, non-biodegradable samples, and suspicious samples. If the results of three tests are different, the reasons should be identified and the test should be repeated.

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