Tube, Fermentation, Durham (Hach)
Durham fermentation tubes detect gas production from bacterial fermentation of sugars in water quality and food and beverage testing. Inverted inner tube captures gas bubbles to indicate positive fermentation results. Borosilicate glass withstands repeated sterilization and autoclave cycles. Used in coliform testing, lactose fermentation assays, and MPN analysis. Sign in to your account or contact your sales rep for organizational pricing.
Borosilicate glass, 6-mm O.D. x 50 mm. Pack of 72.
Frequently asked questions
What is the purpose of the inverted inner tube in Durham tubes?
The inverted inner tube captures gas bubbles produced during bacterial fermentation, providing a visible indicator of positive test results.
Are Durham tubes suitable for coliform testing?
Yes. Durham tubes are standard equipment for coliform fermentation assays and related bacterial testing protocols.
Can these tubes withstand autoclave sterilization?
Yes. Borosilicate glass construction tolerates repeated autoclave cycles and high-temperature sterilization without damage.
What testing methods use Durham fermentation tubes?
Durham tubes support coliform testing, lactose fermentation assays, glucose fermentation assays, and Most Probable Number (MPN) analysis.
Are multiple sizes available?
Yes. Borosilicate Durham tubes are available in various sizes to match different testing protocols and sample volumes.
