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The graduation of 15 ml- (177 xxx) and 50 ml-polypropylene tubes is precise in a tolerance range of +/- 2%.
Centrifuge tubes as well as other products of polystyrene are not autoclaveable. Polystyrene is resistant to temperatures between -20 °C and +60 °C. Polystyrene products will deform themselves because of the high temperature (+120 °C) during the autoclaving process.
Yes, the following polycarbonate tubes are available
|160 501||16,0 x 100 mm||12 ml||round bottom|
|172 501||16,5 x 103 mm||13 ml||conical bottom|
|169 501||16,0 x 152 mm||20 ml||round bottom|
Maximal centrifugation forces depend on the type of rotor and are specified as follows:
|Product Number||max. RCF Fixed Angle Rotor [g]||max. RCF Swinging Bucket Rotor [g]|
|15ml PP tube||188xxx||15.000||4.000|
|50ml PP tube||210xxx||11.500||2.800|
|50ml PP tube||227xxx||9.500||3.200|
Greiner Bio One does not offer a special rack for item 187262. It is recommended to use a standard tube rack for this product.
All laboratories which manipulate potentially hazardous biological agents and materials, and generate waste containing such agents are responsible for the separation, packaging and treatment of their laboratory waste prior to its removal and disposal.
Greiner Bio One as supplier of disposable plastic ware cannot indicate the appropiate waste disposable the latter beeing dependent on the respective customer application and country-specific regulations. All Greiner plastic disposables are for single use only and cannot be recycled.
Please find below universal recommendations for biological waste disposal:
Biological waste includes:
- liquids such as used cell culturing media, supernatant, blood or blood fractions (serum), etc., which contain viable biological agents;
- materials considered pathological, including any part of the human body, tissues and bodily fluids, but excluding fluids, extracted teeth, hair, nail clippings and the like that are not infectious;
- any part of an animal infected [or suspected to be infected] with a communicable disease;
- non-sharp, solid laboratory waste (empty plastic cell culture flasks and petri dishes, empty plastic tubes, gloves, wrappers, absorbent tissues, etc.) which may be, or is known to be, contaminated with viable biological agents;
- all sharp and pointed items used in medical care, diagnosis, and research, including the manipulation and care of laboratory animals, which should be considered potentially infectious;
- laboratory glassware which is known or suspected to be contaminated with hazardous biological agents.
In addition to the general packaging requirements specific requirements for biological waste must be followed:
a) Liquids containing Biohazardous Agents
- Collect liquids in leak-proof containers such as flasks or bottles.
- Liquid waste containers designed to withstand autoclaving temperatures must be used when steam sterilization is utilized. To allow pressure equalization, they should not be sealed.
- Non-sharp, solid laboratory waste (empty plastic cell culture flasks and petri dishes, empty plastic tubes, gloves, wrappers, absorbent tissues, etc.) which may be, or is known to be, contaminated with viable biological agents should be collected in autoclavable bags.
c) Sterilization and Disinfection
- Autoclaving (steam sterilization) is the preferred (and generally regarded as the most reliable) method of sterilizing biological waste. Depending on the volume of waste to be sterilized, it may be necessary to extend the duration of exposure to high temperature steam under pressure.
- Steam sterilization is generally not recommended for laboratory waste contaminated with or containing a combination of viable biological agents and significant amounts of hazardous chemical or radioactive materials.
- Containers of liquid waste must be placed into an autoclavable tray or pan of sufficient capacity to contain all liquid in the event of vessel failure or breakage inside the autoclave chamber. Use extreme caution when handling autoclaved liquids since they are hot and may boil over.
- Autoclavable bags of solid waste should be closed but not sealed airtight to allow steam penetration before they are placed into the autoclave chamber.
The maximum centrifuge capacity of PP-tube Cat. No. 187 261 is:
- Swinging bucket rotor max. 4800 RCF
- Fixed-angle rotor max. 34000 RCF