WEIGHTED AVERAGE SAMPLING

April 1975* Janaury 1977**

Mill Operator
Mechanical Repairman
Mill Foreman

Buggers

Sewing Machinist
Mill Clean-Up

Dry Rock Loader Operator
Mine Crusher Operator
Mine Clean-Up

Fork Lift Operator
Dryer Operator

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Pumps run continually across an 8 hour period at
1.0 1/min with filters changed as necessary.

Pumps run at 43) hour intervals dispersed throughout
8 hour period to include 25% of working time but not,
lunchtime.

If 1977 assessment was done over whole 8 hour
period results would be lower.