Sometimes the chemical industry is thought of as distinct from industrial gases; so materials such as ammonia and chlorine might be considered "chemicals" (especially if supplied as a liquid) instead of or sometimes as well as "industrial gases".
Terkadang bahan kimia industri dianggap berbeda dari gas industri; jadi bahan kimia seperti amonia dan klorin bisa dianggap "bahan kimia" (terutama jika disuplai sebagai cairan), bukan, atau kadang-kadang, sebagai "gas industri".