Olov sinovini o'tkazishning eng oddiy usullaridan biri bu plastmassadan namunani kesib, uni tutunli shkafda yoqishdir.Olovning rangi, hidi va yonish xususiyatlari plastmassa turini ko'rsatishi mumkin: 1. Polietilen (PE) – Tomchilar, sham mumiga o'xshash hidlar; 2.Polipropilen (PP) – Tomchilar, asosan iflos dvigatel moyining hidi va pastki ohanglari. sham mumi; 3. Polimetilmetakrilat (PMMA, “Perspex”) – pufakchalar, yoriqlar, shirin xushbo‘y hid; 4. Poliamid yoki “Neylon” (PA) – isitilgan alanga, marigoldlarning hidlari; 5. Akrilonitrilbutadienstiren emas (Akrilonitrilbutadientir) kuygan olov, marigold hidlari; 6. Ko'pikli polietilen (PE) – tomchilar, sham mumi hidlari