Tubes - Scilogex DM 0412 User Manual

11.2 Tubes

11.2.1 Cleaning and sterilizing tubes
Conditions
Cleaning fluids
Ultrasonic cleaning
Autoclaving
Boiling
Ultraviolet sterilization
Gas sterilization
PA: Polyallomer PC: Polycarbonate PP: Polypropylene
11.2.2 Cleaning PC tubes
PC material is low in chemical resistance against alkaline solutions. Avoid using neutral detergents with
pH higher than 9. Note that pH of some neutral detergents are still higher than 9 even if diluted according
to the manufacturer's instructions. Use detergent with its pH between 7 and 9.
11.2.3 Autoclaving PA、PC and PP tubes
PA begins softening at about 120 , PC and PP at about 130
for 30 minutes, PC and PP tubes at 121℃ （0.1kg/cm
the tubes may be deformed.
When use a sterilizing chamber, please operate as follows:
(1) Place tubes in vertical position, mouths upward. If tubes are placed sideways, they may deform into an
oval shape due to gravity.
(2) Remove locking nut and lid to prevent from deformation or rupture.
(3) Wait until the sterilizing chamber cools down to the room temperature before removing tubes.
Acidic（pH5 or lower）
Acidic（higher than pH5 ）
Alkaline（higher than pH9 ）
Alkaline（pH9 or lower）
Neutral（pH7）
Warm water(up to 70 )
Neutral detergent（pH7）
115℃（0.7kg/cm
121℃（1.0kg/cm
126℃（1.4kg/cm
15 to 30 minutes
200-300nm
Ethylene oxide
Formaldehyde
Table 11.2 Cleaning and sterilizing conditions for tubes
℃
O：Applicable X：Inapplicable
℃
2
）30minutes
2
）20 minutes
2
）15 minutes
℃. Autoclave PA tubes at 115℃（0.7kg/cm
2
） for 20 minutes. If a certain temperature is exceeded,
15
Materials PA PC
X X
O O
O X
O O
O O
O O
O O
O O
X O
X X
O O
X X
O X
O O
PP
X
O
O
O
O
O
O
O
O
X
O
X
O
O
2
）