Autoclavable Polypropylene bags | Transparent | 50 sheets

Autoclavable Polypropylene bags | Transparent | 50 sheets

Autoclavable Polypropylene bags made of pure high molecular weight Polypropylene material(HMWPP), no shrinking during high-temperature treatment. 

The majority of traditional autoclave bags are made from polypropylene mixed with polyethene in order to increase their strength and flexibility, with the drawback of considerable shrinkage and deformation during heat treatment. If the material to be sterilised contains sharp objects such as pipette tips, pipettes, syringe needles, etc., the bag can be easily broken and contaminate the entire sterilisation chamber or other objects being sterilised simultaneously.

GMES's unique autoclavable bag product, made from high molecular weight polypropylene from Holocyte, with no polyethene content, shrinks no more than 5% when heat treated at 130 degrees Celsius for one hour while maintaining serviceable mechanical strength.

HMWPP bags also have excellent water and air tightness, just need to tie the bag mouth with a live knot, which can prevent the external steam & water into the bag. Better airtightness than traditional self-sealing PP bags(shown in the picture attached). They are particularly suitable for the autoclave or dry heat sterilisation of open-top or loose-cap reagent bottles, preventing possible contamination of liquids or objects to be sterilised during the autoclave sterilisation process.

Two types of HMWPP bags are available:

40cm X 60cm / Thickness 0.025mm / Double layers 0.05mm

23cm X 33cm / Thickness 0.02mm / Double layers 0.04mm

Use：

-Place the reagent bottles and open containers to be treated (together or separately) in (one or several) bags, tie a loose knot at the mouth of the bag or seal the bag with a steel clip, stick on the heat indicator tape (optional), place it on a tray and put inside the autoclaving instrument.  Follow the instructions of the instrument (e.g., 121 degrees for 15 minutes; 115 degrees for 30 minutes, etc.) till the end of the autoclave.

-When autoclaving dry objects, inject ~10ml of MilliQ water into the bag first, to create steam pressure within the bag when heated up, in case the steam outside not being able to enter into the bag, resulting in incomplete sterilisation.

-For waste treatment, the waste can be packed in a conventional autoclave bag with a ‘Bio Hazard’ or ‘Medical Hazardous Waste’ label, sealed and put into a transparent HMWPP bag. After autoclaving, discard into the corresponding waste bin.

*Do not exceed 170 degrees Celsius for dry heat sterilisation.

*The mechanical strength of the bag will be reduced after autoclave sterilisation. It is recommended to use baskets for transporting items, and not to lift the bag directly to move the weight inside.

*After sterilisation, the bag can be washed and reused, but it is not recommended to reuse the bag more than three times.