3M Steri-Vac GS Series, Site Planning & Installation Manual

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3M
™ ™
Steri-Vac Sterilizer/Aerator GS Series
Site Planning and Installation Guide
70-2011-5643-0 Issue Date: 10/2015
ANNEX D
3M
™
Steri-Gas
™
EO Gas Cartridge Dilution Charts
The following Tables provide estimates of air concentrations of ethylene oxide (EO) if the identified 3M
™
Steri-Gas
™
EO Gas Cartridge should empty into a
room, and provide the time needed for a room ventilation system to reduce the EO concentrations to acceptable levels. These charts are based on rooms
with 10 air exchanges per hour.
3M
™
Steri-Gas
™
EO Gas Cartridge 4-100 3M
™
Steri-Gas
™
EO Gas Cartridge 8-170
Room
volume
(ft
3
)
Room
volume
(m
3
)
Room
airflow
(cfm)
EO gas
weight
(g)
Room EO
concentration
after spill
(ppm)
Time to
reach
0.5 ppm
(minutes)
600 17 100 100 3270 53
700 20 117 100 2803 52
800 23 133 100 2452 51
900 25 150 100 2180 50
1000 28 167 100 1962 50
1500 42 250 100 1308 47
2000 57 333 100 981 45
2500 71 417 100 785 44
3000 85 500 100 654 43
3500 99 583 100 561 42
4000 113 667 100 490 41
4500 127 750 100 436 41
5000 142 833 100 392 40
5500 156 917 100 357 39
6000 170 1000 100 327 39
6500 184 1083 100 302 38
7000 198 1167 100 280 38
7500 212 1250 100 262 38
8000 227 1333 100 245 37
8500 241 1417 100 231 37
Room
volume
(ft
3
)
600 17 100 170 5559 56
700 20 117 170 4765 55
800 23 133 170 4169 54
900 25 150 170 3706 53
1000 28 167 170 3335 53
1500 42 250 170 2224 50
2000 57 333 170 1668 49
2500 71 417 170 1334 47
3000 85 500 170 1112 46
3500 99 583 170 953 45
4000 113 667 170 834 45
4500 127 750 170 741 44
5000 142 833 170 667 43
5500 156 917 170 606 43
6000 170 1000 170 556 42
6500 184 1083 170 513 42
7000 198 1167 170 476 41
7500 212 1250 170 445 41
8000 227 1333 170 417 40
8500 241 1417 170 392 40
Spill ppm = [(gas weight in mg) / (room volume in cu m)] * [(1 ppm / (1.80 mg/cu m)]
cfm = (room volume in cu ft) * (10 air exchanges per hour) / (60 min/hr)
time = [log10(0.5 ppm / spill-ppm)] * [(-2.303) * (room volume in cu m) / (cfm)]
Room
volume
(m
3
)
Room
airflow
(cfm)
EO gas
weight
(g)
Room EO
concentration
after spill
(ppm)
Time to
reach
0.5 ppm
(minutes)
Employee monitoring may be required by national, state and local regulations. In the U.S., the Occupational Safety and Health Administration (OSHA)
requires breathing zone monitoring of employees for exposure to ethylene oxide after the 3M
™
Steri-Vac
™
GS Series Sterilizer/Aerator GS Series installation
to establish a baseline (OSHA 29 CFR 1910.1047). The 3M
™
Ethylene Oxide (EO) Monitoring Badge 3550 can be used to facilitate personal monitoring
compliance to the OSHA standard.
3M
™
Steri-Gas
™
EO Gas Cartridge Safety Data Sheets (SDS) are available at: www.3M.com/msds
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