Document emX5dbbebb5n5dBvo5dzR2kaq

technical I nrn'ormanon i,r. NO. HF-17 OATE: February 11, 1974 \ I I Analyses of Stelco Samples t (Collected by Ontario Research Foundation 12/3/73) Nine samples were submitted: \ Insulation Board l Spl. 3 New f Spl. 4 New Gasket I Spl. 7 Used \ Disintegrated Board l Spl. 5 Dropped from Preparation Table |I Spl. 8 Burnt, from Cleaning Area Spl. 9 Dust, from Ground ) Airborne Dusts Spl. 1 Hot Top, Preparation Line Spl. 2 Face Mask, Preparation Spl. 6 Hct Top, Cleaning Area i ic i * i 1 1t f *-- * j These samples are said to be derived from- insulating board | and caskets made from a mixture of Olivine, fiber glass, and 1 newsprint, with 4-7 1 Hcclr.ar. fiber added. Microscope examination * ) shows fiber glass and a granular material as primary phases, with [ j smaller fibrous matter in lesser amounts. jI .4 X-Ray diffraction of these samples showed only Wollastonite j (Ca0-Si02) in all cases except that Sample 9 also showed a very { faint unidentified pattern, possibly of forsterite. Evidence for i the presence of Chrysotilc and Lizardite (components of unaltered llcdman fiber) is not seen, even in the new (unheated) fiber-board. ( Wollastonite is the main component in all samples. The concentration of Chrysotile and/or Lizardite in these i samples is too low to permit detection by X-Ray Diffraction in the presence of the strong Wollastonite. < Fos-00-000000i4&s i O. "The New Jersey Zinc Company -3 1812 hj*, UM **** 4H4 ft* .r - t.t r * r tv. * 4'umio * ** ***** I , Ai , .rf rflkiM MMf A* * '**** 1-4 mm* 'Ml *r *< w