Ndi kuwongolera kosalekeza komanso ungwiro wa njira zosiyanasiyana zopangira, zida za polima zimapangidwa kukhala zinthu zosiyanasiyana ndipo zimagwiritsidwa ntchito m'magawo ambiri.Serological pipettesndi zinthu zomwe zimagwiritsidwa ntchito mu labotale zomwe zimagwiritsidwa ntchito kuyeza bwino kapena kusamutsa zakumwa.Nthawi zambiri amapangidwa ndi polystyrene (PS).PS ndi thermoplastic yopanda mtundu komanso yowoneka bwino yokhala ndi izi:

1. Zida zamakina: PS ndi chinthu cholimba komanso chosasunthika chokhala ndi ductility yaying'ono kwambiri ndipo sichimadzipereka potambasulidwa.The makina katundu wa polystyrene zikugwirizana ndi kaphatikizidwe njira, wachibale molekyulu misa, kutentha, zili zonyansa ndi njira kuyezetsa.

2. Thermal properties: PS imakhala ndi kutentha kosasunthika, ndi kutentha kwa kutentha kwa 70 mpaka 95 ° C ndi kutentha kwa nthawi yaitali kwa 60 mpaka 80 ° C.Chifukwa chake,serological pipettessangachotsedwe ndi kutentha kwambiri komanso kuthamanga kwambiri, ndipo kutsekereza kwa radiation kumasankhidwa.Kutentha kwa polystyrene ndikotsika, pafupifupi 0.10~0.13W/(m·K), ndipo kwenikweni sikumasintha ndi kusintha kwa kutentha.Ndizinthu zabwino zotetezera kutentha.

3. Zida zamagetsi: PS ndi polima yopanda polar, ndipo zodzaza zochepa ndi zowonjezera zimawonjezeredwa panthawi yogwiritsidwa ntchito.Choncho, ili ndi katundu wabwino wa dielectric ndi kutsekemera, ndipo katundu wake wa dielectric alibe chochita ndi mafupipafupi.

4. Chemical properties: PS imakhala ndi kukhazikika kwa mankhwala ndipo imatha kupirira ma alkali osiyanasiyana, ma acid ambiri, mchere, mafuta amchere, ma alcohols otsika komanso ma organic acid osiyanasiyana.

Pamwambapa ndi ena makhalidwe a zinthu zaserological pipettes.Kukhazikika kwabwino kwa mankhwala kumatsimikizira kuti njira yothetsera vutoli ndi chubu sichidzachitapo kanthu, motero zimatsimikizira kulondola kwa kuyesera.

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