Occupation: Petroleum Pump System Operators, Refinery Operators, and Gaugers
Task: Clean interiors of processing units by circulating chemicals and solvents within units.

Scale: Frequency of Task (Categories 1-7)
Category: 1
Value: 30.71 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 2
Value: 22.79 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 3
Value: 5.1 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 4
Value: 20.67 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 5
Value: 12.27 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 6
Value: 3.12 (N=60)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 7
Value: 5.35 (N=60)
Source: Incumbent, 06/2007

Scale: Importance
Value: 3.83 (N=61)
Source: Incumbent, 06/2007

Scale: Relevance of Task
Value: 65.79 (N=91)
Source: Incumbent, 06/2007