Friar J J, Phillips A M
Health and Safety Executive, Bootle, UK.
IARC Sci Publ. 1989(90):299-303.
Ceramic fibres (also known as refractory fibres) are regarded here as man-made mineral fibres (MMMF) capable of withstanding temperatures of 1000-1600 degrees C without appreciable distortion or softening. Ceramic fibres are manufactured largely from the aluminosilicate group of minerals but some contain only alumina, zirconia or silica. Simultaneous personal gravimetric and optical fibre count samples were taken throughout the industry. It has not been possible to correlate gravimetric results with fibre counts in any meaningful way. The general conclusions are as follows: (a) gravimetrically, exposures ranged from less than 1 mg/m3 for light tasks to over 10 mg/m3 for some insulation workers. Exposures above 10 mg/m3 were not necessarily associated with correspondingly high fibre counts; (b) fibre counts rarely exceeded 1 f/ml, and it appears that ceramic fibre materials, in company with other MMMF, do not readily produce high airborne fibre counts; (c) control of dust from mineral wools to 5 mg/m3 achieves control to below 1 f/ml. This relationship does not hold for superfine MMMF and does not always hold for ceramic fibres.
陶瓷纤维（也称为耐火纤维）在此被视为能够承受1000 - 1600摄氏度高温而无明显变形或软化的人造矿物纤维（MMMF）。陶瓷纤维主要由铝硅酸盐类矿物制成，但有些仅含氧化铝、氧化锆或二氧化硅。在整个行业中同时采集了个人重量法和光纤计数样本。目前还无法以任何有意义的方式将重量法结果与纤维计数相关联。总体结论如下：（a）从重量法来看，轻度工作的暴露量低于1毫克/立方米，而一些绝缘工人的暴露量超过10毫克/立方米。超过10毫克/立方米的暴露量不一定与相应的高纤维计数相关；（b）纤维计数很少超过1纤维/毫升，而且似乎陶瓷纤维材料与其他MMMF一样，不容易产生高空气传播纤维计数；（c）将矿棉粉尘控制在5毫克/立方米可实现控制在低于1纤维/毫升以下。这种关系不适用于超细MMMF，对陶瓷纤维也并非总是成立。
