The following points should dusts, including carbon black, /' ~ Area where GASES or VAPORS HEXANE. ~/ \ \ \ ~~~~~~gn~~:~~~~ bc~~~~ NAT. GAS be kept in mind when reviewing charcoal, coal, or dusts that have conlalner systems equipment markings and specifi?? been sensitized by other materi?? cations - under the same Class als so that they present an explo?? II 1.