IEC 60079-10-2:20 09涉及存在爆炸性粉尘环境和可燃粉尘层的区域的识别和分类，以便正确评估此类区域的点火源。当可燃纤维或飞料可能造成危险时，也可以遵循本标准的原则。本标准适用于在正常大气条件下由于存在爆炸性粉尘环境或可燃粉尘层而可能存在风险的地方。IEC 60079-10-2的第一版取消并取代了2004年发布的IEC 61241-10的第一版。与IEC 61241-10相关的重大技术变更包括: -明确了粉尘带来的危害； -引入了粉尘组； -引入了解释设备保护级别的附件D； -超出21区的22区通常1米的范围已扩大到3米。

IEC 60079-10-2:2009 is concerned with the identification and classification of areas where explosive dust atmospheres and combustible dust layers are present, in order to permit the proper assessment of ignition sources in such areas. The principles of this standard can also be followed when combustible fibres or flyings may cause a hazard. This standard is intended to be applied where there can be a risk due to the presence of explosive dust atmospheres or combustible dust layers under normal atmospheric conditions. This first edition of IEC 60079-10-2 cancels and replaces the first edition of IEC 61241-10 published in 2004. The significant technical changes with respect to IEC 61241-10 are:
- the hazards presented by dust have been clarified;
- dust groups have been introduced;
- Annex D explaining Equipment Protection Levels (EPLs) has been introduced;
- 1 m of usual extent of zone 22 beyond zone 21 has been expanded to 3 m.