Document gbBGVd2QzRwo4YZnVNoaJMGgG

Table 4. Fibres - as percentage of total particles ______ ______ obaerred_______________________ Sample Brake lining material Brake drum dust Air-borne dust Fibre proportion -% Un-Incinerated Incinerated 28 12.3 0.6 1.6 - 1.3 Table 5. Analysis of Brake drum dnst Sample 1.Anglia Van 2.Cortina Mk.II 3.Anglia car Electron -------------- 3CHy-------- diffraotion diffraction microscopy (normal specimen) X-ray diffraction (extracted speoimen) Chrysotile present N n Iron & quartz present. No chrysotile detected. n N Less than 5% chrysotile, possibly 0.1% to 1%. Less than specimen 1. As specimen 1. A HFM - 005798 8006 1212