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Table 2 Samples used to test the SCOAP plastics reference database and their correlations to reference plastics

From: Determination of the polymer composition of mid-twentieth century purses by Raman spectroscopy

Sample ID Known composition (pigment) Correlation match quality (reference)
ChromaAC24030 Acrylonitrile–butadiene–styrene terpolymer (25.5% TiO2) 97.0% (acrylonitrile–butadiene–styrene)
ChromaHC2200B Polystyrene (26.5% TiO2 + 13%CaCO3) 99.0% (polystyrene)
ChromaNC2667A Nylon (32% TiO2) 93.3% (nylon-6)
ChromaZC2606B Polycarbonate (23% TiO2) 97.0% (polycarbonate)
RecycleCode1 (bottle) Polyethylene terephthalate (colorless) 96.6% (polyethylene terephthalate)
RecycleCode2 (tub) High-density polyethylene (white pigment) 98.8% (high-density polyethylene)
RecycleCode5 (bottle) Polypropylene (colorless) 98.9% (polypropylene)