Plastics recognition - plastic type

Observations when lit with match and allowed to burn

PVC

Blackish smoke and acrid smell

Polyethylene

No smoke, drips like a candle and smells of wax

Polypropylene

No smoke, drips like a candle and smells of burnt oil

Polyamide

No smoke, pulls to form a thread, smells of burnt horn

Polycarbonate

Yellowish sooty smoke, sweetish smell

ABS

Blackish smoke, soot flakes, sweetish smell