Method A: Fourier transform infrared spectroscopy. If the infrared spectrum of the sample is consistent with the spectrum of known biodegradable plastics, the sample material is determined to be biodegradable plastic; if the infrared spectrum of the sample is consistent with the spectrum of known biodegradable plastics; If the patterns of non-biodegradable plastics are consistent, the sample material is determined to be non-biodegradable plastic; otherwise, the sample is determined to be a suspicious sample, which can be further tested and confirmed by other methods. Method B: Near-infrared spectroscopy processes and tests samples in accordance with 5.3.2.1 and 5.3.2.2, analyzes the samples based on the established model, and directly outputs the judgment results. The judgment results are described as biodegradable samples, non-biodegradable samples and suspicious samples. If the three test results are different, the reason should be found and retested.
T/SSPI 003-2024 history
2024T/SSPI 003-2024 Rapid test method for biodegradable plastic products—infrared spectroscopy