The chart shall make one complete revolution in seven days, shall be graduated hourly and daily and must be not less than 10 inches in diameter.
- (1) Lowest temperature reading must be on the outer edge of the chart.
- (2) Accuracy. Zero shall be within one degree plus or minus.
- (3) Charts must be changed each week, properly dated, signed by Plant Manager, and be made available for inspection for at least one year.
Statutory/Other Authority
ORS 628
Statutes/Other Implemented
ORS 628.350
History
AD 286, f. 7-9-47, ef. 7-10-47