Tubes And Bottles - Hitachi CR22N Instruction Manual

Cleaning and sterilizing tubes and bottles
Use the best method for cleaning and sterilizing tubes and bottles, referring to the table below.
Condition
Cleaning fluids
Cleaning
Ultrasonic cleaning
Autoclaving
Sterilization Boiling
Ultraviolet sterilization
Gas sterilization
Cleaning PC tubes and bottles
PC materials have low chemical resistance to alkaline solutions. Avoid using neutral detergents higher than
pH9. Note that some neutral detergents are still higher than pH9 even if diluted according to the instruction
in the maker's catalog. Use detergents between pH7 and pH9.
Autoclaving PA, PC and PP tubes and bottles
PA begins softening at about 120°C, and PC and PP at about 130°C. Autoclave PA tubes/bottles at 115°C
2
(0.7 kg/cm ) for 30 minutes and PC and PP tubes/bottles at 121°C (1.0 kg/cm
temperature is exceeded, the tubes/bottles may be deformed.
Observe the following instructions when using a sterilizing chamber:
(1) Place bottles in a vertical position, mouths facing up. If bottles are placed sideways, they may
deform into an oval shape due to their own weight.
(2) Remove screw caps and inner covers to prevent deformation or rupture.
(3) Wait until the sterilizing chamber cools down to room temperature before removing the bottles.

9.Tubes and Bottles

Cleaning and sterilizing conditions for tubes and bottles
Acidic (pH5 or lower)
Acidic (higher than pH5)
Alkaline (higher than pH9)
Alkaline (pH9 or lower)
Neutral (PH7)
Warm water (up to 70°C)
Neutral detergent (pH7)
115°C（0.7kg / cm
121°C（1.0kg / cm
126°C（1.4kg / cm
15 to 30 minutes
200 to 300 nm
Ethylene oxide
Formaldehyde
PA: Polypropylene copolymer PC: Polycarbonate PP: Polypropylene

: Applicable
Material
2
）30 minutes
2
）20 minutes
2
）15 minutes
9-1
9. Tubes and Bottles

: Inapplicable
PA PC PP
  
  
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  
  
  
  
  
  
  
  
  
  
2
) for 20 minutes. If a certain