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羽绒生产工艺常遇到羽毛尘的问题,羽毛尘对人体有一定危害,由于羽毛尘中含有大量的有机物,对测定粉尘中游离二氧化硅含量有一定影响。我们对可能存在的几个问题进行探讨,其目的是为了进一步提高测定的准确度。测定方法用焦磷酸重量法,对样品采取不同的预处理方法,对不同的样品进行对照试验并经统计处
Feather production process often encounter the problem of feather dust, feather dust on the human body have a certain hazard, due to the feather dust contains a large amount of organic matter, the determination of free silica content in dust have a certain impact. We discussed several possible problems, the purpose is to further improve the accuracy of the determination. Determination of pyrophosphate gravimetric method for the sample to take a different pretreatment methods for different samples for controlled trials and by the Statistics Office