Transreflectance of three different plastic films measured with the
SM-3500. Each scan took less than one second. DARWin SP Data
Acquisition software allows for the combination of multiple scans in a
single plot for comparison. Scans represent polyester (red trace),
polystyrene (blue), and acetate (green) films.
Plastic/Polymer Identification
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems
1 Canal Street  ◊  Unit B1
Lawrence, MA 01840  USA
Tel: 978 687-1833  ◊  Fax: 978 945-0372

Copyright © 2012 Spectral Evolution, Inc
No sample prep required, highly reliable with no moving parts,
easy-to-use - the SM-3500 is a good match for plastic/polymer
analysis and identification.
Spectroscopy is well-suited for measuring polymer identities. It
provides rapid, accurate, and non-destructive material analysis
for industrial and research applications.

SM-3500 is a portable, full range UV/VIS/NIR spectrometer
that can be used to:
  • Accurately identify plastics for recycling to avoid
    contamination and potential processing problems
  • Correctly sort polymer resins
  • Sort and identify raw materials
  • Measure raw material purity
  • Analyze moisture content

The SM-3500 delivers a number of benefits for plastics
  • Rapid, reliable, and non-invasive measurement
  • Cost-effective analysis
  • Portability - take the analyzer to the application
  • No sample prep necessary
  • Easy to use DARWin SP Data Acquisition software
  • Easy to use with 3rd party chemometric software for more
    in-depth analysis

NIR spectra can be attributed to the five major groups of plastic
  • Polyethylene terephthalate (PET)
  • High density polyethylene (HDPE)
  • Polyvinyl chloride (PVC)
  • Polypropylene(PP)
  • Polystyrene (PS)

NIR spectroscopy can be performed on starting materials,
materials in process, and finished product, off-line in the lab, on-
line separated from the processing stream, or in-line within the
process itself.

Plastic identification applications can include:
Accurately identifying specific plastics in recycling
Measuring quality in thermoplastic production
Incoming raw materials quality control
Analysis of physical attributes including density and viscosity
Final quality assessment of finished product
Quantifying the constituent parts of polymers, including residual
solvents and monomers
Measuring and identifying additives
Measuring water content
Determining physical and chemical properties
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems