Filtration Sterilizer

The filter sterilizer physically retains microorganisms through a microporous membrane to sterilize liquid samples. The filter membrane typically has a pore size of 0.22 micrometers, which removes bacteria without altering the composition of the solution. It is suitable for sterilizing heat-sensitive solutions, cell culture media, and reagents, ensuring sample purity in microbial detection and sterile experiments.
Selection
When selecting, consider the compatibility of the sample properties with the filter membrane. Use mixed cellulose membranes for aqueous solutions and polytetrafluoroethylene membranes for organic solvents. Determine the filter capacity based on the sample volume—choose needle-type filters for small volumes and cup-type filters for large volumes. Select the pore size according to the sterilization level: 0.22 micrometers for routine sterilization and 0.1 micrometers for mycoplasma removal. Be mindful of the impact of the filter membrane's protein adsorption characteristics on the sample.

Terms

Standards

Instruments

It can measure the range of 0-1000CSF, with an accuracy of 10CSF, using 304 stainless steel material and silicone sealing ring structure, with self-Adjustment, suitable for various Pulp water filtration change detection.

$ 4325.00

Measurement range 0~ 100 ° SR, overflow discharge time 149 +/- 1s, using national standard design, can accurately detect Pulp suspension filtration rate.

$ 1171.00

Using spring pressing cylinder cover, fast operation. All 304 stainless steel structure, filter precision manufacturing, high durability. Measurement range 0~ 1000CSF, in line with a number of international and domestic standards.

$ 4705.00

Manual compression sealing vertebral body design, three-legged leveling mechanism to ensure sealing, Measurement range 0~ 100 ° SR, cone rising speed 100 +/- 10mm/s, overflow port discharge time 149 +/- 1s.

$ 1134.00

Measurement range 1~ 100 ° SR, sealing cone rising speed 100 +/- 10mm/s, Pulp suspension filtration rate was determined according to Schopper-Riegler method.

$ 1217.00

Temperature range 10~ 200 ℃, Temperature Fluctuation +/- 1 ℃, using forced convection design to heat up quickly, over-temperature automatic interruption operation to ensure safety, shelf can be moved for easy cleaning.

$ 1066.00

Test the 35.7mm diaMeter paper sample under 1Kpa pressure difference, support 50ml and 100ml water volume switching, automatically calculate the filtrate speed and count multiple sets of data, Film thickness Measurement range 0.10~ 3.00mm.

$ 2082.00

Temperature range RT + 10~ 200 ℃ and resolution up to 0.1 ℃, forced convection design to shorten the rapid heating drying time, with over-temperature automatic protection and fan speed regulation function, shelf can be moved for easy cleaning and maintenance.

$ 482.00

Under the pressure difference of 1Kpa, the time required for the measurement of water through the 10cm ² sample area is suitable for hydrophilic filtrating materials with certain wet strength, automatic timing, and convenient operation.

$ 2082.00

High Accuracy microcomputer temperature controller, temperature control accuracy of +/- 1 ℃, Temperature resolution of 0.1 ℃; forced convection design makes rapid heating, drying and disinfection time shortened; with over-temperature automatic interruption function to ensure safe operation.

$ 562.00

Adopt the principle of high temperature dry heat disinfection, destroy the protoplasm of microbial cells by oxidation, Temperature range 10~ 200 ℃, Temperature Fluctuation +/- 1 ℃, with forced convection, three-speed fan speed regulation and timing functions to ensure efficient and safe disinfection.

$ 611.00

Measurement range 0~ 100 ° SR, overflow discharge time 149 +/- 1 seconds, cone rising speed 100 +/- 10mm/s, used to detect Pulp suspension filtration rate, in line with ISO 5267-1 international standards.

$ 1340.00

Temperature control accuracy +/- 1 ℃, rapid heating and over-temperature automatic interrupt function, adjustable fan Rotation speed and timing control, easy to clean the box.

$ 838.00

Adopt high temperature dry heat technology, destroy microbial cell protoplasm by oxidation; Temperature range RT + 10~ 300 ℃, Temperature Fluctuation +/- 1 ℃; with over-temperature alarm, leakage protection and timing functions, mirror stainless steel liner is easy to clean.

$ 749.00

Using high temperature dry heat technology to destroy microbial cell protoplasm through oxidation, Temperature range RT + 10-300 ℃, Temperature Fluctuation +/- 1 ℃, with over-temperature alarm, RS-485 interface and mirror stainless steel liner to ensure disinfection effect and equipment durability.

$ 1098.00

Articles

Canadian Standard Freeness Tester for Measuring Pulp Drainage Performance
The Canadian Standard Freeness Tester is used to measure the drainage properties of pulp, which is an important indicator for evaluating pulp quality. Based on the principle of gravity filtration, the instrument measures the drainage rate of pulp suspension under standard conditions to determine the freeness value.
Detailed Operating Procedures for the Pulp Beating Degree Tester
The pulp freeness tester is used to evaluate the drainage performance of pulp, and its operation must strictly adhere to standardized procedures. First, prepare clean instruments and pulp samples at standard temperature, then calculate the freeness value based on the drainage time.
What is the difference between the Bendtsen method and the Gurley method for measuring paper air permeability using an air permeability tester?
The air permeability of paper is a key indicator for evaluating its structural compactness and suitability, especially crucial in fields such as packaging, filtration, and specialty papers. The Bendtsen and Gurley methods are two classic and widely used techniques for determining paper permeability.
The main issue with using a Ubbelohde viscometer is that 90% of capillary blockages are caused by inadequate sample filtration.
More than 90% of capillary blockage in Ubbelohde viscometers during measurement is due to inadequate sample filtration. Minute particles or gels in the sample tend to adhere to or become trapped when flowing through the narrow capillary, leading to abnormal flow rates and affecting measurement accuracy.