2002年3月12日,国家标准GB/T18664-2002《呼吸防护用品的选择、使用与维护》获得批准,将于2002年10月1日起实施,这是我国职业病预防工作中的一件大事。为帮助广大读者了解和使用这个新标准,本栏目将与标准的起草单位之一、3M中国有限公司合作开办系列讲座,分步骤地详细讲解标准的内容和使用方法。 March 12, 2002, the national standard GB / T18664-2002 “Respiratory protective equipment selection, use and maintenance” was approved, will be October 1, 2002 come into operation, which is our country occupational disease prevention in a major event . In order to help readers to understand and use this new standard, this section will collaborate with one of the standard drafting units, 3M China Co., Ltd. on a series of lectures detailing the contents and usage of standards in a step-by-step manner.