Minuteman Mirage M220028K17X Parts And Instruction Manual page 19

1.5% CO 500,000cf
TWA (OSHA Method)
Based on the CO production rates shown above the TWA would be exceeded in a 100 x 500 x 10 foot
(empty) space after 6 hours with 2 air changes per hour. (Assumes no additional CO exposure during any 8 hour
time period),
The Graph above depicts the relationships of air exchange to time and CO ppm with cubic feet area and percent
CO emissions remaining constant.
1.5% CO 750,000cf
TWA (OSHA Method)
Based on the CO production rates shown above the TWA would not be exceeded in a 100 x 750 x 10 foot (empty)
space after 8 hours with 2 air changes per hour. (Assumes no additional CO exposure during 8 hour time period)
The Graph above depicts the relationships of air exchange to time and CO ppm with cubic feet area and percent
CO emissions remaining constant.
Parts and Instruction Manual - Mirage 27" Propane Burnisher
8 Hour Time Weighted Average (OSHA Method)
Hours of Operation 1 2
0 Change/hr 17 51
1/2 Change/hr 14 35
1 Change/hr 11 26
2 change/hr 7 16
8 Hour Time Weighted Average (OSHA Method)
Hours of Operation 1 2
0 Change/hr 5 14
1/2 Change/hr 4 9
1 Change/hr 3 7
2 change/hr 2 4
3 4 5 6
103 171 257 380
62 92 123 156
42 59 76 93
24 33 42 50
3 4 5 6
27 46 69 96
16 24 33 42
11 16 20 25
7 9 11 13
7 8
479 616
189 223
110 127
59 67
7 8
128 154
50 59
29 34
16 18
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