Description
Graduated test tubes of borosilicate glass 3.3 measuring 19 mm in diameter by 220 mm in length provide a nominal volume of 30 ml with 0,5 ml graduation intervals. Each tube is equipped with a pouring spout and supplied with a polypropylene stopper that fits the NS 14/23 ground joint, ensuring secure closure during handling and storage. The robust Boro 3.3 glass delivers high chemical resistance and good thermal performance, making the tubes suitable for heating, mixing, sample preparation and general analytical work in chemical, biological and pharmaceutical laboratories. Clear walls allow unobstructed observation of contents while the standardised joint supports compatibility with common laboratory fittings. Offered in a practical pack of 10 pieces from manufacturer Brand, these reagent tubes support precise volumetric reading and reliable containment in routine research, quality-control and teaching environments. Their combination of accurate graduation, durable material and included stoppers makes them a versatile choice for everyday laboratory workflows requiring dependable glassware.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: Borosilicate glass 3.3
- Dimensions: 19 x 220 mm
- Nominal volume: 30 ml
- Graduation interval: 0,5 ml
- EAN: 4033378382641
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Test tube Boro 3.3 grad. with PP-stopper, 30 ml:0,5 ml, NS 14/23, 19 x 220 mm
What is this article?
Test tube Boro 3.3 grad. with PP-stopper, 30 ml:0,5 ml, NS 14/23, 19 x 220 mm is the article on this page. Luminix Health distributes Brand for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
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.