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The 25mL individually sealed sterile serological pipette is the most widely used medium-volume liquid handling consumable in biological laboratories, biotech companies, hospital clinical laboratories and microbial testing centers. Falling between 10mL small-volume pipettes and 50mL large-volume pipettes, the 25mL specification balances fine quantitative accuracy and moderate liquid transfer volume, which perfectly matches daily conventional experiments such as cell passage, medium replacement, reagent mixing, serum sample aliquoting and bacterial solution transfer.
During pipetting operations, experimenters can directly observe the liquid column position and residual liquid inside the tube, effectively reducing reading errors caused by invisible liquid level. The whole tube is printed with dense black graduation marks with a minimum scale interval of 0.2mL. Solvent-resistant printing ink is adopted for scale printing, so the numbers and scale lines will not fade or blur after long-term immersion in cell culture medium, PBS buffer, alcohol and weak acidic solutions, ensuring stable volume accuracy for repeated batch experiments. A red circular ring is designed on the top connector, serving as the international unified color identification standard for 25mL serological pipettes. Laboratory staff can quickly distinguish it from orange 10mL, blue 50mL and yellow 100mL pipettes, avoiding misselection in high-intensity experimental work.
Each single pipette is independently packed in breathable sterile peelable packaging. The outer pouch is printed with batch number, production expiry date, sterile certification mark and non-pyrogenic logo, realizing full lifecycle quality traceability. All finished products undergo EO ethylene oxide sterilization in Class 100,000 clean workshops, and each batch is subject to sterility test and endotoxin detection before delivery, fully meeting the aseptic requirements of mammalian cell culture. This pipette follows international blow-out calibration rules: the tiny amount of liquid retained at the tapered tip must be completely blown out by a pipette controller to reach the standard 25mL rated volume, complying with global standard laboratory quantitative pipetting operating norms.
Rated Capacity | 25 mL |
Graduation Division | 0.2 mL per scale (2/10mL) |
Specification Mark | Red top ring color coding |
Usage Property | Single use only, disposable |
Packaging Form | Individual peel-off sterile pouch |
Tube Performance | High transparency, scratch-resistant scale |
First, ultra-high measurement precision with fine graduation. The 0.2mL minimum scale greatly improves the accuracy of medium-volume liquid preparation, effectively lowering experimental deviation in biochemical detection, microbial counting and cell culture medium proportioning.
Second, reliable high-level aseptic guarantee. Independent sealed packaging prevents secondary pollution during transportation and storage; non-pyrogenic and non-cytotoxic features will not damage cell activity in sensitive cell experiments and biopharmaceutical testing projects.
Third, excellent chemical inertness of raw materials. Medical polystyrene will not react with common laboratory aqueous reagents, without dissolution and precipitation of harmful substances, so biological samples can be well protected from contamination.
Fourth, humanized operation and packaging design. The tearable sterile pouch can be opened without sharp tools, conforming to GMP clean laboratory sterile operation specifications. The smooth tapered tip can be inserted into centrifuge tubes, cell culture flasks, roller bottles and narrow-mouth reagent bottles for stable liquid transfer without splashing.
Fifth, wide equipment compatibility. It can be directly assembled with most mainstream manual pipette fillers and electric pipette pumps on the market without additional adapters, with stable sealing and smooth suction & discharge performance.
This 25mL sterile serological pipette covers multiple professional application scenarios: cell subculture and medium exchange in biological laboratories, serum and plasma sample separation in hospital clinical departments, bacterial liquid transfer and medium distribution in microbiology labs, standard solution preparation for university life science teaching experiments, reagent blending for pharmaceutical R&D laboratories, raw material pre-treatment for cosmetic research and development, as well as sample liquid quantitative distribution in food safety inspection institutions.
A1: No, it is a single-use disposable consumable. High-temperature autoclaving will lead to tube deformation, scale peeling and sterilization failure, easily causing sample cross-contamination, and reuse is strictly forbidden.
A2: The red ring is the international color code for 25mL serological pipettes for quick specification identification.
A3: Yes. It is EO sterilized, non-pyrogenic and cytotoxicity tested, fully applicable for cell passage and medium replacement in cell culture operations.
A4: It indicates the minimum graduation increment of the pipette is 0.2 mL, which allows precise volume adjustment by every 0.2 mL.
