Document eYzXeLDgQBZ9kQxr6oKGkQoq

Table 55 Long-term personal sampling of brake lining repair and maintenance work Garage Number of Number of sets- samples of samples Time weighted average asbestos concentration during sampling period (fibers/ml) Range. Mean A (1976) 16 B (1976) 71 C (1976) 3 D (1975) A E (1976) 2 A 14 Changing Lining Materials 5 0.05-1.68 21 0.01-0.17 1 0.12 1 0.04 . 2 0.02-0.03 Riveting 2 3.71-A.A7 Punching out rivets 0.59 0.09 0.12 0.04 0.03 A.09 A 11 A1 B 13 F (1972) 2 2 -0.95-7.52 Parts Man 1 1.21 5\ 0.03-0.16 Replacing Lining Materials 1 0.2 A. 24 1.21 0.10 0.2 From: NIOSH (1975-1976, unpublished data) c*