Document 917dqzo0QpQNqnavYZZBQgN6V

20 O' That asbestos brake linings (friction material) may be used In a brake system when the friction material operates In cither a dry or oil-wetted environment in a totally enclosed brake compartment which prevents the emission of brake wear products into the ambient air. 2. That asbestos brake linings (friction material) may be used in a brake system, when the friction material operates in a noncncloscd brake compartment, until conclusive medical evidence proves that the emitted brake wear products contain harmful amounts of asbestos.fibers. If all evidence Indicates the need for asbestos brake controls and/or ^^gulatlons, Caterpillar would further recommend that reasonable lrcshold limits of asbestos fiber be established by qualified per ; sonnel (based on scientific fact and foreseeable technological advances). Test procedures which measure the concentration of asbestos fibers must also be developed which are understandable, repeatable, and realistic. i Vl Dace the burden on the manufacturer to design his product to meet rea sonable, attainable standards -- don't just prohibit the use of asbestos for brakes. * As mentioned at the beginning of thi6 booklet, Caterpillar Tractor Co. agrees in principle with the objectives of the Environmental Protection Act. The Company stands ready and willing to assist the Board in the establishment of asbestos regulations which serve the intent of the legislation. o {tool 0593 PRODUCED BY FOR])