粉尘中游离二氧化硅的几点思考
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摘要
该文讨论了游离二氧化硅在职业卫生领域的含义,几种与游离二氧化硅有关的粉尘以及游离二氧化硅检测方法的适用范围。明确职业卫生领域所称的"游离二氧化硅"是专指结晶二氧化硅。焦磷酸法测定粉尘中的游离二氧化硅含量有其方法局限性,因为这个方法不能区分无定型二氧化硅和结晶二氧化硅,而红外分光光度法和X线衍射法普遍适用于各种粉尘中游离二氧化硅含量的检测,应当大力研究和推广。
The paper discusses the identification of free silicon dioxide in the occupational health filed, some kinds of dusts related to the free silicon dioxide and the application scope of test method of free silicon dioxide and makes sure that the free silicon dioxide in the occupational health filed exclusively refers to the crystalline silica, the method of pyrophosphate in measuring the free silicon dioxide content in dust is limited, because the method can't distinguish the amorphous silica from crystalline silica, and infrared spectrophotometry and X-ray stress method are generally applicable to the test of free silicon dioxide in all kinds of dusts, which should be greatly promoted and researched.
The paper discusses the identification of free silicon dioxide in the occupational health filed, some kinds of dusts related to the free silicon dioxide and the application scope of test method of free silicon dioxide and makes sure that the free silicon dioxide in the occupational health filed exclusively refers to the crystalline silica, the method of pyrophosphate in measuring the free silicon dioxide content in dust is limited, because the method can't distinguish the amorphous silica from crystalline silica, and infrared spectrophotometry and X-ray stress method are generally applicable to the test of free silicon dioxide in all kinds of dusts, which should be greatly promoted and researched.
引文
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[6]中华人民共和国国家卫生和计划生育委员会.GBZ 188-2014职业健康监护和技术规范[S].北京:人民卫生出版社,2014.
[7]国家石油和化学工业局.HG/T 3061-1999橡胶配合剂沉淀水合二氧化硅技术条件[S].北京:化学工业出版社,1999.
[8]黄文润.液体硅橡胶[M].成都:四川科学技术出版社,2009:28-30.
[2]孙贵范.职业卫生与职业医学[M].7版.北京:人民卫生出版社,2012:173-174.
[3]中华人民共和国卫生部.GB5748-85作业场所中空气中粉尘测定方法[S].北京:人民卫生出版社,1985.
[4]中华人民共和国卫生部.GBZ/T 192.4-2007工作场所空气中粉尘测定第4部分游离二氧化硅含量[S].北京:人民卫生出版社,2008.
[5]中华人民共和国卫生部.GBZ 2.1-2007工作场所有害因素职业接触限值第一部分化学有害因素[S].北京:人民卫生出版社,2008.
[6]中华人民共和国国家卫生和计划生育委员会.GBZ 188-2014职业健康监护和技术规范[S].北京:人民卫生出版社,2014.
[7]国家石油和化学工业局.HG/T 3061-1999橡胶配合剂沉淀水合二氧化硅技术条件[S].北京:化学工业出版社,1999.
[8]黄文润.液体硅橡胶[M].成都:四川科学技术出版社,2009:28-30.