Description
Stainless steel test tube insert 12/13 mm ø for 90 test tubes is a laboratory rack accessory that holds a maximum of 90 reagent tubes with a 12/13 mm diameter. Made from stainless steel, the insert is suitable for temperatures up to 100 °C and supports organised tempering of multiple samples in bath and circulator workflows. When solvent-containing or acid-containing samples are tempered above 60 °C, stainless steel test tube inserts are recommended for improved material compatibility under those conditions. Supplied as one piece with a net weight of 0,700 kg, this accessory from manufacturer Julabo originates from Germany and fits routine laboratory use where many tubes must be positioned securely during heating or cooling. The defined 12/13 mm opening range matches common reagent glassware formats, while the stainless steel construction offers robust handling and straightforward cleaning between runs. As part of general laboratory materials, the insert helps keep parallel samples orderly and stable throughout temperature-control protocols without adding unnecessary complexity to the setup.
This article is part of Test tube racks, in Stands, clamps & racks.
Key features
- Pack size: 1 pc
- Material: Stainless steel
- Tube diameter: 12/13 mm
- Capacity: max. 90 test tubes
- Temperature suitability: up to 100 °C
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Test tube rack for 90 test tubes 75 x 12/13 mm dia., stainless steel
What is this article?
Test tube rack for 90 test tubes 75 x 12/13 mm dia., stainless steel is the article on this page. Luminix Health distributes Julabo for laboratory use. It sits in Test tube racks, inside Stands, clamps & racks, in Labware.
A test-tube rack holds tubes upright in an order the operator can read back. The hole diameter and the number of places have to match the tubes. An autoclave-safe rack and a cardboard rack are not interchangeable once heat is involved.
A stand, a clamp and a rack hold something still so the hands can do the work. A bosshead locks a clamp to a rod. A test-tube rack keeps tubes upright and in an order the operator can read back. The failure is almost always mechanical: the clamp slips, or the rack does not match the tube diameter. The glass they support is indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stands, clamps & racks. The sub-category is Test tube racks. The catalogue is Labware.
Shelves beside this one are Stands, rods & bases, Clamps & bossheads and Stand & rack accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.



