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 HTM 2010 Sterilization Temperature Bands 

High Temperature Steam Sterilizer


Sterilization
Temperature

Maximum Allowable
Temperature

Minimum
Holding Time

115 DegC

118 DegC

30 Minutes

121 DegC

124 DegC

15 Minutes

126 DegC

129 DegC

10 Minutes

134 DegC

137 DegC

03 Minutes

Dry Heat Sterilizer

Sterilization
Temperature

Maximum Allowable
Temperature

Minimum
Holding Time

160 DegC

170 DegC

120 Minutes

170 DegC

180 DegC

60 Minutes

180 DegC

190 DegC

30 Minute

LTS Sterilizer

Disinfection
Temperature

Maximum Allowable
Temperature

Minimum
Holding Time

71 DegC

80 DegC

10 Minutes


LTSF Sterilizer

Sterilization
Temperature

Maximum Allowable
Temperature

Minimum
Holding Time

71 DegC

80 DegC

180 Minutes (c)


Ethylene Oxide Sterilizer

Sterilization
Temperature

Maximum Allowable
Temperature

Minimum
Holding Time

30-56 DegC

(b)T

t(d)


a) The temperature setting on the automatic controller will not generally be the sterilization temperature, but a higher temperature within the sterilization temperature band

b) For EO, the maximum allowable temperature will normally be 4 DegC above the sterilization temperature/

c) For LTSF, the sterilization conditions may specify either a continuous holding time or the number of pulses of formaldehyde required to chieve sterilization.

d) Fo EO, the gas exposure tie is determinated for each sterilizer by microbiological methods during commissioning but is tyically 2-7 h depending upon sterilization temperature and gas concentration.

Eschmann Spare Parts 
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Tel +44 (0) 1709 811460 | Fax +44 (0) 01709 811461 (Sales)
| Fax +44 (0) 01709 811462 (Accounts)

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