尘肺病是由于在职业活动中长期吸入生产性粉尘并在肺内潴留而引起的以肺组织弥漫性纤维化为主的全身性疾病。1　范围本标准规定了尘肺病的诊断原则和尘肺病的Ｘ射线分期。本标准适用于国家现行职业病名单中规定的各种尘肺病。2　引用标准下列标准所包含的条文 ,通过在本标准中 Pneumoconiosis is a systemic disease characterized mainly by diffuse fibrosis of the lung caused by long-term inhalation of productive dust and retention in the lung during occupational activities. 1 Scope This standard specifies the principles of pneumoconiosis diagnosis and pneumoconiosis X-ray staging. This standard applies to the current national list of occupational diseases in a variety of pneumoconiosis. 2 Normative references The following standards contain provisions which, through this standard