Styrene, tare da in mun gwada da low narkewa batu, yawanci yana kasancewa azaman ruwa mai mai mara launi a yanayin yanayin yanayi.
Bugu da kari, tare da ma'aunin walƙiya kawai 30 ° C, styrene yana da saurin kamuwa da konewa ko fashewa a ƙarƙashin yanayin zafi da matsa lamba. Bugu da kari, iskar gas ɗinsa masu saurin ƙonewa suna saurin kunna wuta a gaban buɗewar wuta ko zafi mai tsanani.
Sakamakon haka, styrene an kasafta shi azaman Class 3 ruwa mai ƙonewa a cikin kundin adireshin kayan haɗari.