Inlabtec Serial Diluter TA – Serial dilution for microbiological investigations

The Inlabtec Serial Diluter range is the 21st century alternative to using test tubes for performing dilution series for microbial testing (patent pending). These systems are fully ISO-compliant and offer unprecedented cost and quality benefits in combination with maximum environmental relief.  Add the sample with the 1ml tip or straw into the first bag, connect the dosing arm and simply press the grey button. This direct radial mixing process leads to perfectly homogeneous dilutions - Every time by every technician, unlike the test tube protocol, where mixing by manual vortexing is difficult to standardize consistently. 

During automatic dilution it’s just enough time to load the pipette with a new tip and begin to enter the bag for sampling. 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 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 TA | Sample prep done cleverly

Inlabtec | Serial Diluter SA | Reported by SGS Fresenius

Technical data




Serial Diluter TA use with 1 ml pipette tips
Serial Diluter TA12 use with 1 ml pipette tips
Serial Diluter SA use with pipette straws

Number of dilutions

1 to 6 for TA and SA
1 to 12 for TA12

Processing speed < 4 seconds per dilution using LO Pipette Tips or pipette straws 
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
± 0.9 % used with pipette straws

Compatible pipette tips
to Serial Diluter TA 
All known 1 ml pipette tips with a standard cone and lenght. To maximize process speed tips with a wide orifice/ opening/ etc. should be used
Compatible pipette straws
to Serial Diluter SA
All known pipette straws, straw tips, bag straws, etc. with a length between 160 and 220 mm







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