Inlabtec Serial Diluter UA – Serial dilutions for microbiological quality control

The Inlabtec Serial Diluter range is the 21st century alternative to using test tubes for dilution series in microbial testing (patent pending).

Serial Diluter UA has an integrated Stomacher-like bag mixer. Therefore, all known pipette tips, filter tips, straws, etc. can be used without any effect on dilution speed. 

The working process is 100% identical to the standard method and complies with EN ISO 6887-1: 2017. Smart monitoring functions ensure simple and error-free operation. The Serial Diluter UA is universally suitable for all samples in microbiological testing, including viscous, high-fat or sugar-containing samples such as cream, egg yolk, syrup, etc. The user is freed from the tiresome handling of test tubes and caps as well as of mixing manually. Moreover, precise pipetting is simplified as the sample is completely flushed out by the diluent ensuring accuracy and reliability of dilutions. 

The Serial Diluter UA makes performing dilution series fast, reliable and comfortable regardless of the individual skills and experiences of the user. See the results of proficiency tests.

Inlabtec | Serial Diluter UA | Dilution System

Technical data



Description Serial Diluter UA use with 1 ml pipette tips
Number of dilutions 1 to 6 
Processing speed < 4 seconds per dilution 
Compatible Pipettes All known 10 ml pipettes made ​​of glass or plastic. Suitable pipette dimensions:
diameter 8 - 15 mm, lenght 150 - 350 mm 
Max. systematic error for 9 ml

± 0.1 % after calibration of the pipette used

± 0.5 % without calibration pipette class A

± 0.8 % without calibration pipette class B

± 2 % without calibration plastic pipette

Max. random error for 9 ml ± 0.6 % used with 1 ml pipette tips





LO Pipette Tips - 100211 iNLABTEC
Serial Dilution Bags - 100100 iNLABTEC
Homogenizer Bags - 100120 iNLABTEC
Homogenizer Bags mit Filter - 100125 iNLABTEC


Technical Service

During our business hours, our free telephone support will be glad to assist you in case of any questions. Our Technicians take care of the delivery and installation of original spare parts of the highest quality as well as certified testing, measuring, and control equipment. Our maintenance according to manufacturer specifications includes functional tests, cleaning, accuracy testing with calibration as well as a detailed report. In addition, our maintenance contracts protect your investments and reduce the total cost of ownership.

Detailed information about our support options can be found here.

Logo Inlabtec AG

The Inlabtec AG is located in Switzerland and their solutions characterize easy and comfortable operation, reliable analysis results, optimal use of available resources and lower costs compared to alternative technologies. The company's aim is to provide their customers with competitive advantages and thus sustainably to improve their market position and profitability. Inlabtec reforms the serial dilution of samples for microbiological cell counting. The preparation of serial dilutions has been used for decades for bacterial cell counting without any significant innovations. Inlabtec has set itself the task of modernizing this traditional method in compliance with the relevant ISO standards.

More about Inlabtec: https://inlabtec.com/


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125 employees
10 locations in europe
32 years of experience